Multiple Choice
Which type of capillary is characterized by a discontinuous basement membrane, allowing for the easy passage of larger molecules and cells?
19. The Blood Vessels
Capillaries
Back19. The Blood Vessels
Capillaries
- Multiple Choice
Which of the following areas of the body has the highest concentration of capillary beds?
- Multiple Choice
Which of the following best describes the microcirculatory flow of blood (microcirculation)?
- Multiple Choice
Which scenario results in constriction of arterioles & precapillary sphincters in mesenteric capillary beds?
- Multiple Choice
Which structure regulates blood flow distribution in mesenteric capillary beds & diverts blood from one area to another based on local metabolic needs?
- Multiple ChoiceExchange of gases and nutrients occurs by diffusion between the __________.
- Multiple ChoiceThe only vessels that provide direct access to nearly every cell in the body are the __________.
- Multiple ChoiceThe presence of __________ stabilizes the wall of capillaries.
- Multiple ChoiceA metarteriole is a vessel that __________.
- Open QuestionLarge molecules such as peptides and proteins move into and out of the bloodstream by way of (a) continuous capillaries, (b) fenestrated capillaries, (c) thoroughfare channels, (d) venules.
- Open QuestionThe local control of blood flow due to the action of precapillary sphincters is (a) vasomotion, (b) autoregulation, (c) selective resistance, (d) turbulen
- Open QuestionHow is the anatomy of capillaries and capillary beds well suited to their function?
- Open QuestionWhy do capillaries permit the diffusion of materials, whereas arteries and veins do not?
- Open Question
List three ways in which substances can cross the capillary wall.
- Open Question
Which of the following structures is the 'leakiest'?
a. Continuous capillary
b. Sinusoidal capillary
c. Precapillary sphincter
d. Fenestrated capillary