What is the function of endocrine glands?
a. to secrete substances directly into ducts that lead to the target area in the body
b. to provide a negative feedback mechanism
c. to secrete substances directly into the blood or lymph circulation and travel to target tissues
d. to provide positive feedback mechanism
C
The function of the endocrine glands is to secrete substances from glands directly into the blood or lymph circulation and travel to their target tissues, rather than be transported via tubes or ducts. Exocrine glands secrete substances directly into ducts that lead to the target area (i.e., lacrimal glands.)
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