Your friend Jillian, who knows little about science, is reading a magazine article about a patient who had an 'aneurysm at the base of his brain that suddenly grew much larger.' The surgeons' first goal was to 'keep it from rupturing,' and the second goal was to 'relieve the pressure on the brain stem and cranial nerves.' The surgeons were able to 'replace the aneurysm with a section of plastic tubing,' so the patient recovered. Jillian asks you what all this means. Explain.

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)

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

d. The increase in tissue perfusion in skeletal muscle that occurs during exercise is known as hyperemia.