Blood Pressure and vessels – Flashcards

Which layer of the typical vessel can be regulated to constrict or dilate the lumen?

Which layer of the typical blood vessel is constructed from simple squamous epithelium?

In local autoregulation of blood flow, usually low oxygen levels cause vasodilation. Which tissue shows the opposite pattern?

Large diameter, thick-walled arteries that are close to the heart and act as pressure reservoirs would be...?

T/F Continuous capillaries are the most common capillaries in the body

Which of the following is mismatched? elastic arteries: conducting vessels capillaries: exchange vessels muscular arteries: distribution vessels veins: resistance vessels

Which of the following would decrease peripheral resistance to blood flow? vasoconstriction atherosclerosis anemia increasing blood vessel length

Which of these responses is NOT a response consistent with a drop in mean arterial pressure? increased thirst secretion of aldosterone release of renin from the kidneys increased filtration by the kidneys

Which of the following is NOT one of the ways that angiotensin II increases arterial blood pressure? Angiotensin II triggers the sensation of thirst. Angiotensin II stimulates the secretion of aldosterone. Angiotensin II promotes vasodilation that decreases peripheral resistance. Angiotensin II prompts the release of antidiuretic hormone (ADH).

Which of the following would be interrupted in the indirect renal mechanism if angiotensin converting enzyme (ACE) is blocked from performing its job?

Which of the following is a myogenic factor that influences blood flow? epinephrine from the adrenal medulla stretch of vascular smooth muscle sympathetic tone atrial natriuretic peptide

Which of the following is NOT correct regarding the relationship between pressure, flow, and resistance in the cardiovascular system? Blood flow is inversely proportional to the change in pressure in the blood vessels. Instead of resistance affecting systemic circulation, most of the time resistance is used to change flow to individual organs. Blood flow equals cardiac output. The relationship between resistance and flow is the opposite of the relationship between pressure and flow.

Which of the following hormones would most likely induce a lowering of blood pressure? angiotensin II atrial natriuretic peptide (ANP) epinephrine and norepinephrine antidiuretic hormone (ADH)

How can baroreceptors help maintain blood pressure homeostasis when blood pressure increases

If a person jumps quickly out of bed, which of the following is most likely to decrease in order to maintain blood pressure homeostasis the level of angiotensin II in the blood the diameter of blood vessels heart rate the level of epinephrine in the blood