Some intercellular regulatory molecules that exert only very local effects are called ________ regulators.
A)sympathetic
B)exogeneous
C)mesocrine
D)endocrine
E)paracrine

Question

Quizplus · Accepted Answer

Paracrine regulators are intercellular regulatory molecules that only affect nearby cells. This is in contrast to endocrine regulators, which are hormones that are secreted into the bloodstream and have effects on distant target cells. Sympathetic refers to the division of the autonomic nervous system responsible for the "fight or flight" response. Exogeneous is not a term typically used to describe regulatory molecules. Mesocrine is also not a term typically used in this context.

Some Intercellular Regulatory Molecules That Exert Only Very Local Effects