Name:
35. The layer of the eye that is interlaced with blood vessels to nourish the eye is the
a choroid coat
b.
retina
c.
sclera
d. cornea
ID: A
36. The valve between the right atrium and right ventricle that prevents blood from flowing back into the right
atrium is the
a. tricuspid valve
b.
pulmonary valve
0.
aortic valve
d.
mitral valve
37. The valve between the left atrium and left ventricle that prevents blood from flowing back into the left atrium
is the
a.
tricuspid valve
b.
pulmonary valve
C.
aortic valve
d.
mitral valve.
38. The blood vessels that contain valves to prevent blood from flowing in a backward direction are the
a
b.
arteries
veins
c.
d.
capillaries)
arterioles
39. The largest artery in the body is the
a.
carotid
c.
aorta
b.
femoral
d.
coronary
40. The blood cells that contain hemoglobin are the
a leukocytes
c.
erythrocytes
b. platelets.
d. thrombocytes
41. Which of the following is not true of thrombocytes?
a.
Thrombocytes lack a nucleus.
b. Thrombocytes vary in shape and size.
C.
Thrombocytes are required for the clotting process.
d. Thrombocytes fight infection.
42. An inflammation of a vein near the skin surface, with the formation of a clot is
4. phlebitis
b. thrombophlebitis.
c.
embolus
d. varicose veins
43. The leukocytes that provide immunity for the body by developing antibodies and protect against the
formation of cancer cells are
a. neutrophils
b. lymphocytes
c.
d.
basophils
cosinophils
44. Dilated, swollen veins that have lost elasticity and cause stasis, or decreased blood flow, are called
a.
phlebitis
b. aneurysm
c. varicose
d. emboli
45. Which of the following is not a risk factor that increases the incidence of hypertension?
a. race
b. smoking
c.
excessive exercise
d. obesity