Secretions that are discharged directly into the blood are characteristic of ________ glands.
A) exocrine
B) merocrine
C) endocrine
D) apocrine
E) holocrine

Question

Quizplus · Accepted Answer

Endocrine glands secrete hormones directly into the bloodstream, which then travel to target organs or tissues to produce a response. This is in contrast to exocrine glands, which secrete their products into ducts that lead to the surface of the body or into the lumen of an organ. Merocrine, apocrine, and holocrine are all types of exocrine secretion mechanisms.

Secretions That Are Discharged Directly into the Blood Are Characteristic