Circulatory Pre-exam assignment
Capillary beds have precapillary sphincters at the junction of capillaries and the metarteriole.
sphincters
Capillary beds have precapillary_________ at the junction of capillaries and the metarteriole.
sphincters
Correctly label the following anatomical features of capillary fluid exchange.
1 - filtration process 2 - transcytosis 3 - diffusion through endothelial cells 4 - Intercellulaar clefs
This is the physical force exerted by a ______ against a surface like a capillary wall.
liquid
Blood flow is ________ according to metabolic needs.
redirected
Constriction of these sphincters ______ the blood flow through their respective capillaries.
reduces
This shift in fluid balance at the arterial end is referred to as ______ pressure.
hydrostatic
Most of the redirection will occur in the _______
arterioles.
Veins
covergence relatively large lumen contains valves relatively large diameter superficial locations sites used for blood donation
Arteries
divergence thicker walls thicker layers of smooth muscle Purfuse elastic fibers in the tunica media
When this occurs, blood is _______to tissue or organs elsewhere.
diverted
When the sphincters are open, blood will _____ the capillary bed.
fill
During exercise, the skeletal muscles receive _____ blood flow.
more
Typically, fluid filters ____ the arterial end of a capillary.
out
Fluid will then osmotically reenter at the _____ end.
venous
This fluid delivers materials to the cells and removes its ____
waste.
Increases flow
increasing vessel radius
After a meal, the ______ receive priority, and the skeletal muscles receive very little flow.
intestines