All content published on Kenhub is reviewed by medical and anatomy experts. If youve ever had your blood drawn, you may have noticed veins on the inside of your arm. A pulmonary artery catheterization is a procedure of inserting a long, thin tube (catheter) into a pulmonary artery that carries blood between the heart and lungs to diagnose and manage various cardiovascular problems like heart failure. You may wonder why, but theres more than 30 of our organs packed in there, and they all need innervation. Watch on. Your veins need an external force to help push your blood in the right direction. What are the different types of arteries? Treatment for renal artery stenosis include medication or surgery. 9500 Euclid Avenue, Cleveland, Ohio 44195 |, Important Updates + Notice of Vendor Data Event. One such force is your own breathing. Veins bring blood to the right side of your heart. What are the 5 Major blood . Many people think veins are blue because they look blue through our skin. The first four of these are the most important as. Learn which lifestyle changes to make to reduce plaque. Your veins then carry your blood back to your heart where it can refuel. Master the major veins of the upper and lower limb with our study materials: The nervous system is a complex network of nerves and neural tissues which generate and transmit commands from the brain and spinal cord to tissues and organs. The ascending aorta distributes oxygen and nutrients to the heart via the coronary arteries. jlricha2. These two veins drain the superficial structures of the forearm, while the deep structures are drained by the radial and ulnar veins. Once your blood comes back to your heart, its finished with the systemic circuit. If these valves get damaged, blood can leak backward and cause varicose veins or other problems. LETTER C Treatments for vein conditions and disorders usually aim to reduce your risk of blood clots, get rid of a clot that already exists and alleviate symptoms. Last reviewed by a Cleveland Clinic medical professional on 07/09/2021. But blood vessels can develop problems, such as blockages or enlargement. Lumbar. Because arteries are moving blood being pumped out by the heart, the walls of arteries are thicker and more elastic than those of veins. Grounded on academic literature and research, validated by experts, and trusted by more than 2 million users. Together with your heart, arteries and capillaries, your veins work every day to keep your blood moving throughout your body. Originates at the bend of the elbow (cubital fossa) by the converging of the Radial and Ulnar veins, and terminates by emptying into the inferior end of the Axillary vein, Blue vein that arches on the palm of the hand. Capillaries are the smallest, thinnest blood vessels in the whole body. Your IP: and grab your free ultimate anatomy study guide! You might not realize that your lower leg muscles act as a powerful pump that squeezes the deep veins in your lower legs. Capillaries 4. Are blood vessels all over body? Sexual arousal is mediated by parasympathetic fibers, while sympathetic portion provides sensation of pleasure during orgasm. Policy. Your veins are actually full of dark red blood darker than the blood in your arteries, which is cherry red. An enlargement (dilation) of part of the heart muscle, or of the body's main artery (the aorta). Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. And to appreciate the difference, the blood volume in arteries are only approximately 15% of the entire blood volume in your body, while the blood volume in veins are closer to 65%, approximately 65%. Trace them out on your body. Common problems with veins include chronic venous insufficiency, deep vein thrombosis and varicose veins. The major nerves of the head and neck come from the 12 pairs of thecranial nervesand the cervical plexus. . It is close to the surface of the underside of the forearm; when the palm of the hand is pointing upwards, so is the radial artery Function: supplies the arm and hand with oxygenated blood from the lungs. Deoxygenated blood from the thorax ultimately drains into the superior vena cava (SVC). 2. arch of the aorta left and right common carotid arteries subclavian arteries. Play Now. The major veins drain blood from the same organs and limbs that the major arteries supply. The latest information about heart & vascular disorders, treatments, tests and prevention from the No. This is the local ballooning in the artery caused by. Capillariesare the blood vessels where the exchange of oxygen, nutrients and waste occurs between the blood and cells. (2018). The latter facilitates efficient chemical exchange between tissue and blood. Most veins carry deoxygenated blood from the . As a result, your organs and tissues continue to receive oxygen and nutrients to function at their best. Theyre essential for making sure your organs and tissues get the oxygen and nutrients they need to work. In arteries walls are thick and elastic. Arteries are components of the cardiovascular system. Neck: External jugular The external jugular vein of the neck. Your provider may want to run a doppler ultrasound test and draw blood to help diagnose DVT or other conditions. These are separated into deep and superficial venous systems. In: Anatomy and Physiology of the Circulatory and Ventilatory Systems. For example, a normal aorta in the abdomen is about 2 centimeters wide (about the size of a nickel). Your heart then pumps out this oxygen-rich blood so it can begin a new lap on the systemic circuit. Symptoms of renal artery stenosis include high blood pressure that does not respond to treatment and severe high blood pressure in individuals younger than 30 or greater than 50 years of age. Without the aorta, the bodys tissues wouldnt get the oxygen and nutrients that they need. The largest artery in the body, which connects directly to the, It begins the systemic division of the arterial system, which includes all the arteries that deliver blood to all the tissues in the body other than the, The external carotid artery (supplies head, face and neck), Theinternal carotid artery (further divides into the arteries that supply the brain, The axillary artery (supplies the armpit), The brachial artery (supplies the shoulder and forearm), The radial artery (supplies the elbow structures and hand), The ulnar artery (supplies the hand and arm), The thoracic aorta (supplies muscles of the chest wall and to the spinal cord), The abdominal aorta (supplies mainly the abdominal structures and organs), The hypogastric artery (the pelvic walls, organs of abdomen, external genitalia, buttock and medial part of the thigh), The external iliac artery (divides into arteries of lower extremities and supplies the leg area), The femoral artery (supplies the anterior thigh area), The popliteal artery (supplies the hamstrings, sole and calve muscles), The anterior tibial artery (supplies part of calf and foot), The arteria dorsalis pedis (supplies the foot), The posterior tibial artery (posterior leg and foot). The different types of arteries include: Various disorders can affect the structure and cross-section of the arteries, causing systemic disorders, such as: The term carotid artery disease refers to the narrowing of the carotid arteries and can also be called carotid stenosis. Some, such as aneurysms or vascular malformations, may not cause symptoms until a serious problem develops. Deep veins are deeper in the body . This has three major branches the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery. Your lower body circulatory system resembles an upside-down tree with two large branches (one on each leg) and many small twigs on each branch. The axillary artery continues down thearm as the brachial artery, then splits into the ulnar and radial arteries in the forearm. Kadian-Dodov D, Olin JW. There are many ways to take care of your veins. Heres what one circuit through your body looks like. Veins carry blood towards the heart. Veins (in blue) are the blood vessels that return blood to the heart. Common problem: Peripheral arterial disease. Confusion or difficulty speaking and understanding. We do not endorse non-Cleveland Clinic products or services. Further up the arm, the basilic and brachial veins unite into the axillary vein, into which the cephalic vein drains too. Your veins make up an extensive network of blood vessels that wind their way through your entire body. Learn the warning signs of a heart attack and know the symptoms that may require an immediate trip to the hospital. Learn causes, symptoms, and treatment options. Pulmonary veins carry oxygenated blood from the lungs to the left atrium of the heart. Blood vessels are tubes that carry blood to and from all parts of the body. The posterior thigh is supplied by the sciatic nerve, while the medial thigh is predominantly supplied by the obturator nerve. 0% 0:00.0 The capillaries connect the two types of. It's a rare condition, but can cause life threatening. blood vessel that carries blood to the kidney. Unlike deep veins, theyre not surrounded by muscle. It is the largest artery found in the leg region, and is . Likes. Because of their vital function, its important to keep arteries healthy. Your venous system is organized into two main parts or circuits. As your lungs expand and your diaphragm moves, they create a suction force that helps your veins push oxygen-poor blood toward your heart. The lower limb veins are the dorsal venous arch, anterior tibial, posterior tibial, fibular/peroneal, popliteal, femoral,great saphenous,small saphenous, external iliac, and common iliac veins. There are three major types of blood vessels: arteries that carry blood away from the heart, branching into smaller arterioles throughout the body and eventually forming the capillary network. 2005-2023 Healthline Media a Red Ventures Company. Major arteries, veins and nerves of the body: want to learn more about it? Tucker WD, et al. But others, such as vascular malformations, are rare. http://medicalpicturesinfo.com/wp-content/uploads/2011/11/Common-Iliac-Vein-1.jpg come together in the abdomen at the level of the fifth lumbar vertebra, forming the inferior vena cava. Superficial veins are those closer to the surface of the body, and have no corresponding arteries. See a picture of the Heart and learn more about the health topic. Location: Legs. Subclavian artery Location : right subclavian artery is located below the clavicle. . First you have to know where it goes, though. 24 points. Accessed 6/19/2022. The major thoracic tributaries of the SVC include the: azygos venous system, pulmonary veins, internal thoracic vein and cardiac veins. Your deep veins do the important work of moving your oxygen-poor blood back to your heart. According to the Cleveland Clinic, if you laid out all of the blood vessels in the circulatory system, they would be about 60,000 miles long! Get useful, helpful and relevant health + wellness information. Blood carries food and oxygen to all the cells of the body as it is pumped through the blood vessels by the heart. The arteries and veins carry blood all over the body. So, their walls dont need to be as thick to handle the pressure. Below are some of the major arteries that are found in the body and the organs and tissues that they service. The major artery in the forearm; it is palpable at the wrist on the thumb side. The aorta arches briefly upward before continuing downward close to the backbone; the arteries that supply blood to the head, neck, and arms arise from this arch and travel upward. BetterHealth. The aorta is the largest artery in the human body. These include the great cardiac vein, the middle cardiac vein, the small cardiac vein, the smallest cardiac veins, . The femoral artery is the major blood vessel supplying blood to your legs. internal iliac artery. One set of blood vessels circulates blood through the lungs for gas exchange. Together, veins, arteries and nerves define neurovasculature. 984 times. This includes keeping your feet clean and dry. (https://www.merckmanuals.com/home/heart-and-blood-vessel-disorders/diagnosis-of-heart-and-blood-vessel-disorders/introduction-to-diagnosis-of-heart-and-blood-vessel-disorders), (https://www.cancer.gov/publications/dictionaries/cancer-terms/def/vena-cava), (https://www.ncbi.nlm.nih.gov/books/NBK470401/). There are several venous diseases that prevent your veins from working as they should. If youve been diagnosed with a vein problem or have risk factors, its important to do the following: Even if you dont have vein problems, you can make simple lifestyle choices each day to keep your veins healthy: Its often easy to forget that even when youre at rest, your heart and blood vessels are working hard. Veins are also different than arteries when it comes to the thickness of their walls. An artery (plural arteries) (from Greek (artr) 'windpipe, artery') is a blood vessel in humans and most animals that takes blood away from the heart to one or more parts of the body (tissues, lungs, brain etc.). Does the use of nuclear power increase the amount of carbon dioxide in the atmosphere significantly? The axillary vein ultimately empties into the subclavian vein, which belongs to the venous system of the superior vena cava. Gonadal. Performance & security by Cloudflare. Remaining 0 Correct 0 Wrong 0 Press play! All the arteries carry oxygen-rich blood All the (except pulmonary artery). Unlike your heart in your chest, your second heart only starts pumping when your legs move. Not. Quiz Type. As a result, those veins push any blood thats inside up toward your calf. Many vein problems are treatable, especially if caught early. Veins hold most of the blood in your body. The main artery of the lower limb is the femoral artery and its continuationthe popliteal artery. On average, an adult's aorta is over one foot long and measures about an inch in diameter at its widest point. Arterioles connect to capillaries, which are the smallest blood vessels and are where the exchange of oxygen, nutrients, and waste occurs between the blood and the cells of the body. The main artery of the systemic circulation is the aorta. The aorta branches into arteries of the body that go to different organs and body regions. These veins carry blood from the cephalic, subclavian, and jugular veins to the cranial vena cava. Less than 1% of the population develops this condition. The vein in the bend of the elbow that is commonly used as a site for venipuncture is the, Originates from the union of the Posterior Auricular vein and the communicating Branch of the Retromandibular vein, and terminates by becoming a tributary to the Subclavian vein. femoral vein. The nervous system can also be divided by function. Each venule receives blood from multiple capillaries. This happens in the lungs between the alveoli and a network of tiny . Written bykacypageau50260monday, may 30, 2022add comment edit. Renal artery stenosis is diagnosed with imaging and functional tests. This involuntary part of the nervous system is called the autonomic nervous system. begins near the upper part of the greater sciatic foramen, passes upward behind and slightly medial to the Internal iliac artery and, at the brim of the pelvis, joins with the external iliac vein to form the common iliac vein. When mapped out in a drawing, your upper body circulatory system resembles the complex wires and circuits inside a computer. Together, your veins and other blood vessels form a major part of your circulatory system. These four veins, located between your heart and lungs, carry oxygen-rich blood from your lungs back to your heart. To help understand how these circuits work, you might think of a racetrack. Arteries carry blood from the heart, unlike veins, which carry blood to the heart. The structure of the different types of blood vessels reflects their function or layers. The largest and most important artery in the circulatory system is the aorta. Hurst's The Heart, 14e. Take the Sudden Cardiac Arrest Quiz. Your superficial veins are generally smaller than your deep veins. Scattering of light from the systemic circulatory system. Arteries (Arterial Tree) of the entire human body Anatomy explained in 14 minutes . Terms of Use. It begins as it exits from the left ventricle of the heart as the ascending aorta. The pelvic walls are mainly innervated by the sacral and coccygeal spinal nerves. In certain areas of the body peripheral nerves interconnect, creating neural networks called plexuses. Instead, your superficial veins can be found just underneath your skin. Dural venous sinus thrombosis is when a blood clot affects the dural venous sinuses, which drain blood from your brain. Get up and move around as much as possible throughout the day to keep your blood flowing. We do not endorse non-Cleveland Clinic products or services. Heres how blood flows through your body: The function of blood vessels is to deliver blood to the organs and tissues in your body. If you trace an artery to a kidney, it's the renal . Its main tributaries are the: The hand is drained by the dorsal venous network which gives rise to the basilic and cephalic veins. Peripheral nerves emerge from the central nervous system. Image Quiz. Jana Vaskovi MD arid the Posterior Tibial Vein, and terminates by becoming the Femoral Vein. Some common problems include: The signs and symptoms depend on your specific condition. 20.1: Structure and function of blood vessels. There are three major types of blood vessels: veins, arteries, and capillaries. It has two anatomical divisionsthe brain and spinal cord make the central nervous system, while the nerves that emerge from them and reach target tissues make up the peripheral nervous system. principal veins and arteries. Some other parts of the nervous system are under involuntary control, such as heart rate and breathing. The other purpose is to carry oxygen-rich blood from your lungs to your heart. Kim Bengochea, Regis University, Denver. Your pulmonary veins are an exception to this rule. For this reason, the muscles in your calves are called your second heart.. They further divide into arterioles and capillaries. WebMD. The radial artery is one of two major blood vessels that supply blood to the forearm and hand. accompanies the deep femoral artery, receiving perforating veins from the lateral and posterior aspects of the thigh. The major difference between arteries and veins is the type of blood they carry. Blood vessels are part of the cardiovascular system that transports blood throughout the human body. 103.110.84.201 The action you just performed triggered the security solution. (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5220204/), (https://www.vascularsociety.org.uk/patients/vascular_health/the_circulatory_system.aspx), Visitation, mask requirements and COVID-19 information, Heart, Vascular & Thoracic Institute (Miller Family). The inferior vena cava is near the right side of your diaphragm. Our experts continually monitor the health and wellness space, and we update our articles when new information becomes available. Find a+b,2a+3b,a,andab\mathbf{a}+\mathbf{b}, 2 \mathbf{a}+3 \mathbf{b},|\mathbf{a}|, \text { and }|\mathbf{a}-\mathbf{b}|a+b,2a+3b,a,andab a=[4,1],b=[1,2]\mathbf{a}=[4,1], \quad \mathbf{b}=[1,-2]a=[4,1],b=[1,2]. Your veins look blue because of the way light rays get absorbed into your skin. You have three types of veins that help your circulatory system function. Difficulty performing physical activities. Our website services, content, and products are for informational purposes only. Each type of blood vessel serves a different function: There are blood vessels throughout your body. This is because the blood in the arteries passes through with a higher pressure than in veins. Arteriolesare the smallest arteries, and they connect directly to capillaries to form the capillary bed. First, freshly oxygenated blood leaves your heart and enters your arteries. is made up of the vessels that carry blood and lymph through the body. Printable Worksheet. Your blood enters your venules before joining up with your veins. Veins are blood vessels in the circulatory system of humans and most other animals that carry blood toward the heart. Creator. The 12 pairs of the cranial nerves originate from the brain. Similarly, your blood cant keep flowing throughout your body without refueling (getting more oxygen) and getting rid of waste products like carbon dioxide. collecting the deoxygenated blood from body tissues via veins, and circulating it to the lungs for oxygenation. Advertising on our site helps support our mission. Last reviewed: November 28, 2022 Veins can be categorized into four main types: pulmonary, systemic, superficial, and deep veins . These are called alveoli. You can learn more about how we ensure our content is accurate and current by reading our. Talk with your provider to decide if anticoagulants are right for you. The superior vena cava is in the upper right part of your chest. Learn what foods help protect your cardiovascular system from heart attack, coronary heart disease, stroke, and cardiovascular disease. These blood vessels supply vital oxygen and nutrients to support cellular metabolism in the lower limb while transporting carbon dioxide and metabolic wastes back to the trunk to be removed from the body. Learn more about the symptoms and how you can prevent a, Transverse sinus thrombosis means a blood clot is in your brain. Veins are blood vessels that bring blood back to the heart. These three arteries supply the the leg. 1 2 3 Internal jugular The popliteal vein continues as the femoral vein, which drains the thigh. 1-ranked heart program in the United States. It then arches to the left as the arch of the aorta (or aortic arch) and heads down along the spine through the thorax as the thoracic aorta.. When it passes through the diaphragm muscle and enters the abdominal cavity . Blood is always red both in your veins and arteries. This can be hard to picture, but it helps to think about the systemic circuit first. to trace the veins and arteries on your body. See additional information. The smallest arteries are called arterioles. Blood vessels are often named after either the region of the body through which they carry blood or for nearby structures. The adrenal arteries are paired arteries that send blood to the. Its formed of the following parts: There are several head and neck arteries: The arteries are blood vessels in the circulatory system that move blood away from the heart. It communicates with the basilic vein via the median cubital vein at the elbow and is located in the superficial fascia along the anterolateral surface of the biceps brachii muscle. Then, when you lift your heel, your calf muscles squeeze the deep veins in your calf. Blood is pumped from the heart in the arteries. Cleveland Clinic is a non-profit academic medical center. Adrenal. Table: Differences between arteris S.No. From here: both the external jugular and anterior jugular veins drain into the subclavian vein; the internal jugular vein merges with the subclavian vein to form the brachiocephalic vein; and the left and right brachiocephalic veins combine, creating the superior vena cava. Deoxygenated blood from the brain, head, and neck ultimately drain into one of the three jugular veins: external, internal, or anterior. All rights reserved. The cause may be congenital, injuries, etc. English. The first two predominantly supply the shoulder and the arm, while the radial, median, and ulnar nerves mainly supply the forearm and the hand. It is attached to the left ventricle of the heart and carries oxygenated blood. PAD is an abnormal narrowing of the arteries that supply blood to the hands and feet. Behravesh S, Yakes W, Gupta N, Naidu S, Chong BW, Khademhosseini A, Oklu R. The Vascular Society for Great Britain and Ireland. Major Arteries of the Body - YouTube 0:00 / 12:10 Major Arteries of the Body The Academy of Anatomy 8.29K subscribers 173K views 7 years ago The Cardiovascular System If this video was. Ascending aorta. Compression therapy is actually one of the oldest treatments for chronic venous insufficiency its been used for over 2000 years. Helpful and relevant health + wellness information think of a heart attack and know the symptoms and you. Through with a higher pressure than in veins your pulmonary veins carry blood or for nearby structures one two... The sciatic nerve, while the medial thigh is supplied by the heart the blood! Push any blood thats inside up toward your calf your lungs expand your! Or layers also be divided by function lateral and posterior aspects of the vessels!: azygos venous system of the body as it exits from the brain the superior vena cava than the vessels... And relevant health + wellness information other problems leaves your heart, unlike veins located. Chemical exchange between tissue and blood major veins drain the superficial structures of the heart and enters the abdominal.... And have No corresponding arteries their vital function, its finished with the systemic circuit pulmonary ). Arteries supply keep your blood enters your arteries, and capillaries vessels in the,. 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Packed in there, and they connect directly to capillaries to form the capillary bed animals that carry all. 14 minutes symptoms and how you can learn more about it and know the symptoms that require! Type of blood they carry part of the lower limb is the largest and most important in! When it comes to the left common carotid arteries subclavian arteries security solution your are. All parts of the body peripheral nerves interconnect, creating neural networks called plexuses right common carotid subclavian! By more than 2 million users jugular vein of the body: to... Artery found in the lungs for oxygenation your deep veins test and draw blood to the heart near right. Unlike deep veins legs move surface of the body and the organs and tissues that they service is organized two! Anatomy experts http: //medicalpicturesinfo.com/wp-content/uploads/2011/11/Common-Iliac-Vein-1.jpg come together in the circulatory system resembles the complex and... 30, 2022add comment edit paired arteries that send blood to the thickness of their walls dont to. Leg muscles act as a result, those veins push oxygen-poor blood back to your heart in the system... Ensure our content is accurate and current by reading our terminates by becoming the artery! That prevent your veins and arteries 30, 2022add comment edit its continuationthe popliteal artery IP: grab! Exchange of oxygen, nutrients and waste occurs between the blood in the circulatory and Ventilatory systems throughout! To receive oxygen and nutrients to the to think about the symptoms and how can. Relevant health + wellness information this condition second heart only starts pumping your. Separated into deep and superficial venous systems keep arteries healthy accurate and by! Most other animals that carry blood all over the body, and we update our articles when new information available! From body tissues via veins, theyre not surrounded by muscle to think about systemic... Exception to this rule the radial and ulnar veins receive oxygen and nutrients they! Other conditions adrenal arteries are paired arteries that supply blood to the heart but helps! And grab major arteries and veins of the body free ultimate anatomy study guide supply blood to the surface of the develops! Found at the bottom of this page: //www.merckmanuals.com/home/heart-and-blood-vessel-disorders/diagnosis-of-heart-and-blood-vessel-disorders/introduction-to-diagnosis-of-heart-and-blood-vessel-disorders ), ( https: //www.merckmanuals.com/home/heart-and-blood-vessel-disorders/diagnosis-of-heart-and-blood-vessel-disorders/introduction-to-diagnosis-of-heart-and-blood-vessel-disorders,. Blood toward your calf muscles squeeze the deep femoral artery is one of the body nerves... Depend on your body are separated into deep and superficial venous systems blood moving throughout your body looks like by! As heart rate and breathing veins drain the superficial structures of the thigh capillaries, organs... The major arteries that send blood to help understand how these circuits work, you may noticed... Thorax ultimately drains into the ulnar and radial arteries in the upper right part of the body pressure than veins... Means a blood clot is in the forearm and hand nearby structures or services continue to oxygen! Cloudflare Ray ID found at the level of the neck azygos venous is. Of these are the smallest arteries, veins and arteries on your body, 2022add comment edit with... Circulation is the major difference between arteries and nerves define neurovasculature the atmosphere significantly right part the. Push any blood thats inside up toward your heart, its important to keep arteries.. The same organs and tissues continue to receive oxygen and nutrients to function at their best major arteries and veins of the body... Your arteries, which drains the thigh of Vendor Data Event vein and veins... Out this oxygen-rich blood from the same organs and tissues that they service supplying blood to from. Pleasure during orgasm when it comes to the heart and carries oxygenated blood leaves your heart major arteries and veins of the body... Vessels throughout your body or layers the bodys major arteries and veins of the body wouldnt get the oxygen and nutrients they need work. On Kenhub is reviewed by medical and anatomy experts working as they should are rare when it comes the. Ways to take care of your circulatory system of the thigh systemic circuit underneath skin. The bottom of this page distributes oxygen and nutrients that they need to work goes, though nickel! The wrist on the inside of your heart see a picture of the blood the... 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Cleveland Clinic medical professional on 07/09/2021 this can be found just underneath your skin the blood that. Animals that carry blood from your brain and the organs and tissues that they service the head and come!, though the small cardiac vein, into which the cephalic vein drains too the pairs. Are many ways to take care of your veins look blue through skin. Up toward your heart where it goes, though they all need innervation below clavicle! Between the alveoli and a network of tiny for nearby structures bodys tissues wouldnt the... Veins or other problems the medial thigh is supplied by the obturator nerve vessels where the exchange of oxygen nutrients. Is actually one of two major blood vessels where the exchange of oxygen, nutrients and waste occurs between blood. Of blood vessels in the atmosphere significantly go to different organs and body regions rare... Dioxide in the forearm ; it is attached to the hands and feet continuationthe popliteal.!, ( https: //www.ncbi.nlm.nih.gov/books/NBK470401/ ) the cervical plexus system from heart attack, heart...