________ form elaborate capillary networks within tissues that allow for very slow blood flow.
A) Varicosities
B) Sinusoids
C) Foramina
D) Portal systems
E) Perfusion centers

Question

Quizplus · Accepted Answer

Sinusoids form elaborate capillary networks within tissues that allow for very slow blood flow, creating an increased exchange of substances between the blood and tissues. Varicosities are abnormal, enlarged, and twisted veins, portal systems connect two capillary beds, foramina are openings in bones for the passage of nerves and blood vessels, and perfusion centers are not a recognized term in anatomy or physiology.

________ Form Elaborate Capillary Networks Within Tissues That Allow for Very