Quiz 8 covers Lecture 12 Blood Vessels and Blood Pressure.

Hypertension is the most common blood pressure abnormality and if left untreated can lead to: stroke. congestive heart failure. renal failure. retinal damage. all of the above

All of the above

Which of the following would NOT result in an increase in blood pressure? Increased cardiac output. Decreased total peripheral resistance. Increased heart rate. Venous vasoconstriction. Increased stroke volume.

Decreased total peripheral resistance.

Which of the following situations would increase blood flow through a specific tissue? Sympathetically induced vasoconstriction of the arteries supplying the tissue. Increased concentration of oxygen in the tissue. Decreased concentration of carbon dioxide in the tissue. Localized release of histamine. Localized application of cold.

Localized release of histamine.

Which of the following blood vessels act as pressure reservoirs? arteries arterioles capillaries venules veins

arteries

Which of the following could lead to edema? a fall in capillary blood pressure. a fall in the concentration of plasma proteins. blocked lymph vessels. both (a) and (b) both (b) and (c)

both (b) and (c)

Blood vessel surface area is greatest in the _____ and lowest in the _____.

capillaries : arteries

Resistance to blood flow INCREASES when:

hematocrit increases.

At the beginning of a capillary bed the hydrostatic pressure of the interstitial fluid is _____ than the hydrostatic pressure of the plasma leading to net ______ while at the end of a capillary be the osmotic pressure of the plasma is _____ than the osmotic pressure of the interstitial fluid leading to net _____ .

less: filtration : greater : absorption

The pressure measured in the arteries while the ventricles are contracting is:

systolic pressure

Which of the following blood vessels have the largest radius? arteries arterioles capillaries venules veins

veins