Exam 19: The Cardiovascular System: Blood Vessels

For each of the following situations, describe the anticipated effect on blood pressure and the physiological basis of the response: (1) a high-salt diet, (2) a blow on the head that damages (disables) the vasomotor center, (3) an attack by a mugger, and (4) a hypothalamic tumor resulting in excess ADH production.

Which of the following would NOT be expected from taking a diuretic drug?

The beginning of a true capillary is surrounded by a precapillary sphincter. The opening and closing of precapillary sphincters is controlled by__________ .

A pregnant patient comes into a clinic and asks about a small painless dark compressible bulge that is becoming more apparent on her leg. What is it and what caused it?

A patient has an 80% blockage of his left anterior descending coronary artery. Describe what occurs in terms of myocardial oxygen supply and demand if his sympathetic nervous system is stimulated.

The pulse rate depends on all of the following except one. Select the one answer the does NOT affect a pulse rate reading.

Which of the following is the most significant source of blood flow resistance?

Blood flow to the skin ___________ .

Which of the choices below reflects the balance (or imbalance) between the direction and amount of fluid that flows across the capillary walls?

Arteriolar blood pressure increases in response to all but which of the following?

Normal average blood pressure for a newborn baby is__________ .

Which of the following is likely during vigorous exercise?

The pulse pressure is__________ .

Arterial__________ provide alternate pathways for blood to get to an organ.

Whereas diffusion is more important for solute exchange between plasma and interstitial fluid, bulk flow is more important for regulation of the relative volumes of blood and interstitial fluid.

Which of the following statements is NOT true of the precapillary sphincters?

The abdominal aorta splits into which vessels?