Anatomy of arteries and veins

This is an online quiz called Arteries and veins of the arm. Posterior tibial vein.

In contrast veins carry blood back to the heart.

Anatomy of arteries and veins. Vein and Artery Structure. Tunica adventitia The resilient outer layer of both arteries and veins comprised of collagen and elastin. Tunica media The middle layer of both arteries and veins comprised of smooth muscle and elastin fibers.

Tunica intima The interior lining of both veins and arteries which contain the hollow passageway for blood to flow called the Lumen. Thoracic aorta abdominal aorta iliac arteries Veins. Superior vena cava azygos hemiazygos iliac veins inferior vena cava Nerves.

Medial pectoral lateral pectoral intercostal subcostal phrenic vagus pelvic splanchnic nerves lumbar plexus L1-L4 Upper extremity. Axillary brachial ulnar and radial arteries. Arteries and veins of the orbit or eye are generally thought of as the central retinal artery and retinal vein in addition to the ophthalmic artery and vein.

However there are a number of additional ancillary arteries and veins that help support proper structure and functioning of the eyes. Arteries except pulmonary artery carry oxygenated blood from the heart to the tissues while the veins except pulmonary vein bring back oxygenated blood to the heart. Hence the arteries appear red and the veins appear bluish in color.

Veins are thinly walled compared to the arteries because the venous system is typically a low-pressure system. Arteries and veins both have three main layers. The innermost layer which blood touches directly is made of stretchy tissue.

The middle layer is made of muscle tissue that helps blood vessels. Veins lie closer to the surface of the skin than arteries and can often be seen on various parts of the body that contain a lot of muscle mass such as your arms legs and chest area. Veins are constantly working against gravity and therefore have a difficult job to perform.

The middle layer of the walls of arteries and veins is called the tunica media. Its made of smooth muscle and elastic fibers. This layer is thicker in arteries and thinner in veins.

Each artery is a muscular tube lined by smooth tissue and has three layers. The intima the inner layer lined by a smooth tissue called endothelium. The media a layer of muscle that lets arteries.

Arteries are a type of blood vessel. They work to carry blood away from the heart. In contrast veins carry blood back to the heart.

Veins Blood flows from venules into larger veins. Just like the arterial system three layers make up the vein walls. But unlike the arteries the venous pressure is low.

Veins are thin-walled and are less elastic. This feature permits the veins to hold a very high percentage of the blood in circulation. As with veins arteries are comprised of three layers.

The tunicae intima media and externa. In arteries the tunica media which contains smooth muscle cells and elastic tissue is thicker than that of veins so it can modulate vessel caliber and thus control and maintain blood pressure. Anatomy and physiology 2.

In most cases arteries are responsible for carrying oxygenated blood away from the heart and to the specific organs where the further away from the heart the arteries get the smaller they become eventually. When we look at an artery and vein under a microscope we can see that there are differences between the. Anatomy of the Arteries Veins and the Circulatory System - YouTube.

Anatomy of the Arteries Veins and the Circulatory System. Median cubital vein. Dorsal venous arch.

Small saphenous vein. Great saphenous vein. External iliac vein.

Anterior tibial vein. Posterior tibial vein. Normally there are no hypervascular or hypovascular areas.

The contribution of the mammary branches of the posterior aortic intercostal arteries is minor. There are superficial and deep sets of veins the latter associated with arteries. Mammary vessels of living women are demonstrated by infrared photography thermography and mammography.

Arteries are the blood vessels that carry blood away from the heart where it branches into even smaller vessels. Finally the smallest arteries called arterioles are further branched into small capillaries where the exchange of all the nutrients gases and other waste molecules are carried out. Cardiovascular System Anatomy.

This lack of pressure allows the walls of veins to be much thinner less elastic and less muscular than the walls of arteries. Veins rely on gravity inertia and the force of skeletal muscle contractions to help push blood back to the heart. To facilitate the movement of blood some veins contain many one-way.

In general arteries carry away the blood pumped by the heart during systole. While veins carry blood from the periphery of the body back to the heart. From the heart arteries start from the aorta which branches out as arterioles.

These arterioles further branch out into capillaries. This is an online quiz called Arteries and veins of the arm. There is a printable worksheet available for download here so you can take the quiz with pen and paper.

Arteries are the blood vessels that carry oxygen-rich blood to the bodys tissues. JOHN BAVOSIScience Photo LibraryGetty Images. An artery is an elastic blood vessel that transports blood away from the heart.

This is the opposite function of veins which transport blood to the heart. Arteries are components of the cardiovascular system.