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 QuestionWhich of the following structures is the 'leakiest'?a. Continuous capillaryb. Sinusoidal capillaryc. Precapillary sphincterd. Fenestrated capillary
Multiple ChoiceWhich of the following correctly describes the flow of blood through a mesenteric capillary bed when the precapillary sphincters are constricted?
Open QuestionBlood flow in the capillaries is steady despite the rhythmic pumping of the heart because of thea. elasticity of the large arteries,b. small diameter of capillaries,c. thin walls of the veins,d. venous valves.