Chapter 21 Questions and answers

Chapter 21 Questions and answers - Chapter 21 Questions and...

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Chapter 21 Questions and answers 1. Which fluid does lymph most closely resemble? a. Interstitial fluid 2. Lymph contains protein. a. True 3. Lymph contains red blood cells. a. False 4. The central nervous system contains a dense network of lymphatic capillaries. a. False 5. Lymphatic capillaries a. originate as closed-ended tubes associated with blood capillary networks. 6. Lymphatic capillaries originate in the a. tissue spaces between cells. 7. A lymphatic capillary that picks up dietary lipids in the small intestine is called a(n) a. lacteal. 8. The force that drives fluid into lymphatic capillaries is a. hydrostatic pressure. 9. The path that fluid takes as it enters a lymphatic capillary is through a. spaces between capillary endothelial cells that are arranged as one- way flaps 10. The lymphatic system's two main functions are to assist in a. immunity and fluid balance. 11. Lymph is transported through a network of increasingly larger lymphatic passageways. What is the correct order of these, from smallest diameter to largest diameter? a. Capillaries - vessels - trunks – ducts 12. Lymphatic capillaries a. Lack a basement membrane 13. Because lymphatic vessels have three tunics (intima, media, and externa) and valves, they structurally resemble a. Veins 14. Like veins, lymphatic vessels rely on skeletal muscle and respiratory pumps to help propel fluid through them. a. True 15. Fluid collected in lacteals will be carried in __________ trunks. a. Intestinal 16. The walls of the smallest lymphatic vessels contain muscle tissue that rhythmically propels lymph through the system a. False 17. The pulsing of arteries that are adjacent to lymphatic vessels provides a pressure on the vessels that helps them propel the lymph.
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  • Spring '16
  • Veltman
  • Physiology, Anatomy, right lymphatic duct, lymphatic vessels, lymphatic capillaries

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