________ Secrete Hormones and Prohormones in the Interstitial Fluid,which Later

Question

________ secrete hormones and prohormones in the interstitial fluid,which later enters blood.
A)Exocrine glands
B)Endocrine glands
C)Endocrine and exocrine glands
D)Epithelia
E)Connective tissue

Accepted Answer

Endocrine glands secrete hormones and prohormones directly into the bloodstream, while exocrine glands secrete their products through ducts onto surfaces, such as the skin or digestive tract. Endocrine and exocrine glands may be found in some organs, but in this case, the question specifies that the gland secretes directly into the interstitial fluid, which signals an endocrine function. Epithelia and connective tissue may be involved in glandular structure but do not secrete hormones.