Unlike pipes blood vessels are extremely dynamic structures that constrict relax pulsate and proliferate. Now that weve discussed blood were beginning our look at how it gets around your body.
1 Chapter 17 Blood Blood Vessels Lecture 5 Martinis Visual
Long before modern medicine blood was viewed as magical.
Blood vessels anatomy and physiology. An artery is a blood vessel that carries blood away from the heart where it branches into ever smaller vessels. The idea of blood circulating through the body isnt a new one. Eventually the smallest arteries vessels called arterioles further branch into tiny capillaries where nutrients and wastes are exchanged.
Compare and contrast the three tunics that make up the walls of most blood vessels. Blood is the river of life that surges within us. Blood is carried through the body via blood vessels.
Naim kittana phd 3. In this article well examine the structure and function of these important circulatory pathways. Blood anatomy and physiology.
Blood is carried in a closed system of vessels that begins and ends at the heart the three major types of vessels are arteries capillaries and veins arteries carry blood away from the heart veins carry blood toward the heart capillaries contact tissue cells and directly serve cellular needs. Blood vessels and circulation. The major systemic veins review the major systemic veins of the body including the veins of the neck arm forearm abdomen pelvis thigh and leg in this interactive tutorial.
By the end of this section you will be able to. Blood vessels within the body form a closed delivery system that begins and ends at the heart. Distinguish between elastic arteries muscular arteries and arterioles on.
Arteries transport blood away from the heart and branch into smaller vessels forming arterioles. Arterioles distribute blood to capillary beds. It transports everything that must be carried from one place to another within the body nutrients wastes headed for elimination from the body and body heat through blood vessels.
Today hank explains your blood vessels and their basic three layer structure of your blood vessels. Tutorials and quizzes on the circulation of blood and the anatomy structure and physiology of blood vessels using interactive animations and diagrams. Blood pumped by the heart flows through a series of vessels known as arteries arterioles capillaries venules and veins before returning to the heart.
Anatomy and physiology ii. Structure and function of blood vessels.
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