19. The Blood Vessels

The carotid sinus contains:

a. baroreceptors.

b. chemoreceptors.

c. metabolic controls.

d. smooth muscle cells.

Which of the following would produce a decrease in blood pressure?

a. Increased cardiac output

b. Vasodilation

c. Vasoconstriction

d. Increased blood volume

Fill in the blanks: The two pressures within the systemic arterial circuit are the_____pressure and t_____pressure. The difference between these two pressures is the_____ pressure.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

a.The sympathetic nervous system increases blood pressure in the short term by increasing cardiac output and peripheral resistance.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

b. A sudden increase or decrease in blood pressure triggers the baroreceptor reflex, which is mediated by the medulla and the autonomic nervous system.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

c. Hormones that decrease blood volume and blood pressure include antidiuretic hormone and aldosterone.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

d. Angiotensin-II is a chemical that produces profound vasoconstriction.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

e. The kidneys control blood pressure directly through adjustment of blood volume.

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

a. Arterioles reflexively dilate when blood pressure increases.

Explain why a person who is 7 feet tall is likely to have higher blood pressure than a person whose height is 4 feet.

Predict the effects of each of the following on systemic arterial blood pressure:

b. Caffeine consumption, which increases heart rate and causes vasoconstriction

Ms. Rodgers has been diagnosed with secretion of inappropriate ADH syndrome (SIADH). What effect will SIADH have on the amount of water in her body? What symptoms would you expect from this condition? How would it affect her blood pressure and net filtration pressure? (Connects to Chapter 16)