Diffusion Refers to

question 20

Multiple Choice

Diffusion refers to

• A)differences in one group of participants from another group.
• B)the resentment of the untreated group.
• C)the spreading of treatment effects from the experimental to the control group.
• D)the demands of the untreated group to receive equal treatment.

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Definitions:

Precapillary Sphincters

Circular muscular valves located at the entrance of capillaries, regulating blood flow into the capillary beds according to the body's needs.

Tunica Media

Middle, usually muscular, coat of an artery or another tubular structure.

Capillary Beds

Networks of capillaries, the smallest blood vessels, that facilitate the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between blood and tissues.

Precapillary Sphincters

Circular muscular valves located at the entrance of capillary beds, controlling blood flow into those beds.