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    Blood ves·sel
    /ˈbləd ˌves(ə)l/

    noun

    • 1. a tubular structure carrying blood through the tissues and organs; a vein, artery, or capillary.

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  3. May 18, 2021 · Describe the basic structure of a capillary bed, from the supplying metarteriole to the venule into which it drains. Compare and contrast veins, venules, and venous sinuses on the basis of structure, location, and function. Discuss several factors affecting blood flow in the venous system.

  4. Aug 8, 2023 · Introduction. The peripheral vascular system (PVS) includes all the blood vessels that exist outside the heart. The peripheral vascular system is classified as follows: The aorta and its branches: The arterioles. The capillaries. The venules and veins returning blood to the heart.

    • William D. Tucker, Yingyot Arora, Kunal Mahajan
    • 2023/08/08
    • 2017
    • Shared Structures. Different types of blood vessels vary slightly in their structures, but they share the same general features. Arteries and arterioles have thicker walls than veins and venules because they are closer to the heart and receive blood that is surging at a far greater pressure (Figure 20.3).
    • Arteries. An artery is a blood vessel that conducts blood away from the heart. All arteries have relatively thick walls that can withstand the high pressure of blood ejected from the heart.
    • Arterioles. An arteriole is a very small artery that leads to a capillary. Arterioles have the same three tunics as the larger vessels, but the thickness of each is greatly diminished.
    • Capillaries. A capillary is a microscopic channel that supplies blood to the tissues, a process called perfusion. Exchange of gases and other substances occurs between the blood in capillaries and the surrounding cells and their tissue fluid (interstitial fluid).
  5. Structure and Function of Blood Vessels | Anatomy and Physiology II. Blood is carried through the body via blood vessels. An artery is a blood vessel that carries blood away from the heart, where it branches into ever-smaller vessels.

  6. Key terms. The circulatory system is a network consisting of blood, blood vessels, and the heart. This network supplies tissues in the body with oxygen and other nutrients, transports hormones, and removes unnecessary waste products.

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