Cardiovascular System: Blood Vessels and Circulation
1. Blood is transported by systemic blood vessels.
a. from the left ventricle to the left atrium via the body.
b. from the left ventricle to the right atrium via the body.
c. from the right ventricle to the left atrium via the body.
d. from the right ventricle to the right atrium via the body.
from the left ventricle to the lungs
2. Which of the following functions is associated with vessels that transport blood from arterioles directly to veins without passing through capillaries?
a. temperature regulation
b. nutrient delivery to tissues
c. elimination of metabolic waste from tissues
d. tissue oxygen supply
e. pH control
3. The ____ transport blood to the lungs in the pulmonary circulation.
carotid sinuses a.
coronary arteries c
d. the superior and inferior vena cava
4. The abdominal aorta splits at L5 to form the two branches.
a. lower mesenteric arteries
b. the iliac arteries.
Superior mesenteric arteries (c).
d. the femoral arteries
e. the renal arteries
5. Blood drains from the posterior abdominal wall into the
a. portal vein of the liver
b. lower vena cava
c. lumbar ascending vein
d. the mesenteric vein
e. the hepatic vein
6. A blood pressure of 120/80 is considered normal.
a. represent a diastolic pressure of 120 mm Hg
b. produce Korotkoff sounds at pressures greater than 120 mm Hg.
c. be acceptable for a young adult male.
d. show a systolic pressure of 80 mm Hg
e. would be classified as hypertensive.
7. The aorta contains
a. both blood pressure and blood velocity are elevated.
b. blood flow velocity is high, but blood pressure is low.
c. blood flow resistance is high, but blood flow velocity is low.
d. both blood flow resistance and blood pressure are low.
Because the total cross-sectional area is small, velocity is reduced.
Which of the following statements about capillary exchange is correct?
a. The majority of fluid that leaves the arterial end of a capillary returns to the venous end.
b. Interstitial fluid has a higher osmotic pressure than plasma in most cases.
c. Constricting the precapillary sphincter raises capillary blood pressure.
d. The concentration of interstitial protein is usually higher than the concentration of plasma protein.
e. The majority of fluid leaving the arterial end of a capillary enters the lymphatic system.
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9. Famous tag-team wrestler Baron von Quacko has a famous “sleeper hold” that he uses on his opponents. He presses on his opponent’s neck with a single digit on each hand until he passes out. What are the structures he is pressing, and what is the result?
a. subclavian arteries; brain blood flow is halted
b. carotid chemoreceptors; increased blood pressure
c. carotid sinus baroreceptors; peripheral vasodilation and decreased heart rate
d. vertebral arteries; increased blood flow to the brain
e. jugular vein; decreased blood flow back to the heart
Atrial natriuretic factor (ANF)
a. is produced in response to increased atrial pressure.
b. promotes the release of ADH
c. reduces urine production
d. promotes the release of aldosterone
e. raises blood volume