Question

Which is the term for a hormone that acts on the same cell that secreted it? A : limited hormone B : paracrine C : autocrine D : circulating hormone

Answer 1

Answer:

C: autocrine

Explanation:

There are three types of hormones according to where their target cells are.

• Endocrine: Their target cells are distributed far and they travel via blood to reach the target cells.
• Paracrine: Their target cells are often their neighbors so they often diffuse to reach them
• Autocrine: Their secretion acts on themselves. Hence they are their own targets.