BIOLOGY 122 Study Objectives -- Chapter 20

  1. Learn the location of the following major arteries on p. 723 of your textbook: ascending aorta, aortic arch, thoracic aorta, abdominal aorta, brachiocephalic, common carotid, subclavian, internal carotid, external carotid, vertebral, axillary, brachial, ulnar, radial, celiac, superior mesenteric, inferior mesenteric, renal gonadal, common iliac, internal iliac, external iliac, femoral, popliteal, anterior tibial, posterior tibial
  2. Learn the location of the following major veins on p. 733 of your textbook: brachiocephalic, subclavian, internal jugular, external jugular, axillary, basilic, brachial, cephalic, hepatic, renal, common iliac, internal iliac, hepatic portal, superior mesenteric, inferior mesenteric, splenic, external iliac, femoral, great saphenous, popliteal, anterior tibial, posterior tibial.
  3. What is the difference between an artery, arteriole, capillary, venule, and vein?
  4. Know the histological structure of arteries, veins and capillaries, including the location and composition of the: tunica adventitia, tunica media, and tunica media (endothelium).
  5. What is the difference between elastic arteries and muscular arteries? What are their locations?
  6. What causes arterial pulse? What is the average pulse rate, and how does body position, stress, and exercise affect it?
  7. What are capillary beds? How do sphincter muscles control blood flow in capillary beds?
  8. Describe the valve system present in veins and its purpose. Know the meaning of a muscular pump and a respiratory pump.
  9. What are varicose veins?
  10. What are anastomoses?
  11. What is vasoconstriction? Vasodilation?
  12. What is meant by blood flow, blood pressure, and resistance?
  13. What factors affect resistance?
  14. What is the relationship between blood pressure and blood flow? Resistance and blood flow?
  15. Describe how blood pressure is measured. What is meant by systolic pressure? Diastolic pressure? What is "normal"?
  16. What is meant by pulse pressure? How is it calculated?
  17. How does blood pressure vary in arteries, capillaries, and veins?
  18. What factors affect blood pressure?
  19. How is blood pressure regulated by the nervous system and by blood chemicals?
  20. Describe hypotension and hypertension, and causes of each. Be able to recognize blood pressure readings that illustrate each.
  21. How does blood flow vary between rest and exercise?
  22. Describe what is meant by shock? What are the three major types of shock?