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Ch. 19-21 Review

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  • What is the function of dendritic cells?
    Pinocytose interstitial fluid looking for anything foreign
  • What is edema?
    the abnormal increase in interstitial fluid, when filtration exceeds reabsorption
  • What tissue is the tunica externa made from?
    connective tissue
  • What type of blood vessel is not designed to withstand high pressure?
    Veins
  • What is the failure of the cardiovascular system to deliver enough O2 and nutrients?
    Shock
  • What is peripheral resistance determined by?
    Blood viscosity, vessel length, vessel lumen diameter
  • What is not enough blood flow to the heart called?
    Angina pectoris
  • What is the movement of material into interstitial fluid called?
    Filtration
  • Plaque found between the endothelium and smooth muscle is called?
    Atherosclerosis
  • What is the movement of dissolved or suspended material in the same direction in response to pressure?
    Bulk flow
  • What is the killing off of heart muscle from blockage of bloodflow?
    Myocardial infarction
  • Name 2/4 things that increase blood flow with vasodilation
    Increased metabolic needs, infection. tissue damage, high blood volume or pressure, fight or flight
  • What is the movement from interstitial fluid into capillaries?
    Reabsorption
  • What 3 vessels are used to return blood to the heart?
    The Vena cava's, pulmonary veins, and coronary sinus
  • Where do arterioles deliver blood too?
    capillaries
  • What are blood vessels that deliver blood to other blood vessels called?
    Vasa vasorum
  • What type of capillaries are found in the kidneys and small intestines?
    Fenestrated
  • Where do all lymphatic vessels lead to?
    the heart
  • What is the outermost part of the heart?
    Fibrous pericardium
  • What is the on/ off blood flow into capillaries (opening/ closing of precapillary sphincters)?
    Vasomotion
  • What is the function of the Thymus?
    produces hormones and matures the T cells
  • What is angiogenesis?
    The growth of new blood vessels
  • Describe varicose veins
    weak or leaky valves, causing the back flow and pooling of blood
  • What type of arteries are thick walled w/ large lumen near the heart and function as a pressure reservoir?
    Elastic arteries
  • What is the shortcut from the pulmonary trunk to the aorta bypassing the lungs?
    Ductus arteriosus
  • What is physical force exerted by fluid on a structure (blood vessel)?
    Hydrostatic pressure
  • What are some functions of the spleen?
    filters blood, stores platelets, phagocytose microorganisms and old RBCs
  • What is colloid osmotic pressure?
    the pull of water back into a tissue by the tissues concentration of proteins
  • What is the supporting CT of the lymphatic system called?
    Stroma
  • What are the 2 primary organs for the lymphatic system?
    Red bone marrow and the thymus
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