BIOL 2114 Lab

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pamlangley02
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137584
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BIOL 2114 Lab
Updated:
2012-02-25 10:47:59
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Chpt 20 21 22
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Chpt 20, 21 & 22 test
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  1. innermost layer-in contact with blood; forms smooth layer for reduced friction, lines the lumen of a vessel; single thin layer of endothelium.
    tunica interna or intima
  2. bulky middle layer; made up of smooth muscle (plays role in regulating BP & peripheral resistance) and elastic tissue.
    tunica media
  3. supports (reinforces) and protects the blood vessel.
    tunica externa
  4. has a larger tunica media (thus has more smooth muscle); normally has a fairly round lumen.
    artery
  5. has a very thin tunica media (may be hard to see under microscope); may have an irregularly shaped lumen.
    vein
  6. double walled serous sac the heart is enclosed in.
    pericardium
  7. walls of the heart are composed primarly of.
    cardiac muscle
  8. lines the 4 chambers of the heart.
    serous membrane called endocardium
  9. septum that divides the heart longitudinally.
    interatrial or interventricular septum
  10. receives oxygen-poor blood from the body via the superior & inferior venae cavae.
    right atrium
  11. pumps blood to the lungs into the pulmonary trunk.
    right ventricle
  12. sends blood to the lungs to be oxygenated.
    pulmonary trunk
  13. discharges blood into the aorta.
    left ventricle
  14. prevents backflow into the atria when the ventricles are contracting.
    atrioventricular (AV) valves
  15. guards the bases of the 2 large arteries leaving the ventricular chambers.
    pulmonary & aortic semilunar valves
  16. sends carbon dioxide-rich blood to its chambers to the lungs to unload carbon dioxide and pick up oxygen & then back to the left side of the heart.
    pulmonary circulation pump
  17. carries oxygen-rich blood from the left heart through the body tissues and back to the right heart; supplies the functional blood supply to all body tissues.
    systemic circulation pump
  18. contraction of heart chambers during which blood leaves chambers.
    systole
  19. relaxation of heart chambers,during which they fill with blood.
    diastole
  20. events of one complete heartbeat, during which both atria & ventricles contract & then relax & a predictable sequence of changes in blood volume & pressure occur.
    cardiac cycle
  21. average heart beat.
    70 to 76 beats per minute
  22. average length of the cardiac cycle.
    .8 second
  23. AV valves shutting; sound
    lub
  24. alternating surges of pressure (expansion & then recoil) in an artery that occur with each beat of the left ventricle.
    pulse
  25. at the side of the neck.
    common carotid artery
  26. anterior to the ear, in the temple region.
    temporal artery
  27. clench the teeth & palpate the pulse just anterior to the masseter muscle in line with the corner of the mouth.
    facial artery
  28. in the antecubital fossa, at the point where it splits into the radial and ulnar arteries.
    brachial artery
  29. at the lateral aspect of the wrist, just above the thumb.
    radial artery
  30. in the groin.
    femoral artery
  31. at the back of the knee.
    popliteal artery
  32. just above the medial malleolus.
    posterior tibial artery
  33. on the dorsum of the foot.
    dorsalis pedis artery
  34. pressure that blood exerts against the inner blood vessel walls.
    blood pressure
  35. pressure in the arteries at the peak of ventricular ejection (highest in heart)
    systolic pressure
  36. pressure during ventricular relaxation (lowest in heart)
    diastolic pressure
  37. commonly called blood pressure cuff.
    sphygmomanometer
  38. indicated the resumption of blood flow into the forearm.
    sounds of Korotkoff
  39. the monosyllables describing the heart sounds are:
    lub/dup
  40. the first heart sound is a result of closure of the ___ valves.
    • AV valves.
    • semilunar valves
  41. the heart chambers that have just filled when you hear the first heart sound are:
    atria
  42. the chambers that have just emptied are:
    ventricles
  43. immediately after the second heart sound, the ___ are filling with blood and the ___ are empty:
    • left ventricle
    • right ventricle
  44. increased diameter of the arterioles - effect on BP.
    decrease
  45. increased blood viscosity - effect on BP.
    increase
  46. increased cardia output - effect on BP.
    increase
  47. hemorrhage - effect on BP.
    decrease
  48. arteriosclerosis - effect on BP.
    increase
  49. increased pulse rate - effect on BP.
    increase
  50. blood supply that nourishes the heart is provided by:
    right & left coronary arteries
  51. the coronary arteries branch from the base of the aorta & encircle the heart in the:
    coronary sulcus (atrioventriciular groove) at the junction of the atria & ventricles
  52. are compressed during systole and fill when the heart is relaxed.
    coronary arteries and their branches
  53. drained by several cardiac veins.
    myocardium
  54. empties into the coronary sinus.
    cardiac veins
  55. an enlarged vessel on the backside of the heart.
    coronary sinus
  56. empties into the right atrium.
    coronary sinus
  57. also directly empties into the right atrium.
    several anterior cardiac veins
  58. semilunar valves shutting; sound
    dup
  59. earlike flaps of tissue projecting from the atrial chambers.
    auricles
  60. drains the pelvis.
    internal iliac vein
  61. receives venous blood from the lower limb.
    external iliac vein
  62. longest vein in the body.
    great saphenous vein
  63. drains the calf muscle and then empties into the popliteal vein at the knee.
    small saphenous vein
  64. receives blood from the posterior abdominal wall.
    inferior vena cava
  65. drains into the left renal vein superiorly.
    left gonadal vein
  66. drain the kidneys.
    renal veins
  67. receives blood from the adrenal gland on the same side.
    right suprarenal vein
  68. drain the head, neck and upper extremities.
    right & left brachiocephalic veins
  69. unite to form the superior vena cava.
    right & left brachiocephalic veins

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