Which substance is a hormone that acts primarily on cells close to the source of the hormone?
A) Adrenaline
B) Estrogen
C) Histamine
D) Insulin
E) Thyroxine

Question

Quizplus · Accepted Answer

Histamine is a local hormone that acts primarily on cells close to its source. It is involved in regulating local immune responses and inflammation. Adrenaline, estrogen, insulin, and thyroxine are all hormones that act on target cells throughout the body.

Which Substance Is a Hormone That Acts Primarily on Cells