객관식
Which endocrine gland secretes the hormone melatonin?
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16. The Endocrine System
Introduction to the Endocrine System
객관식
Which of the following is NOT an endocrine gland?
A
Adrenal gland
B
Pituitary gland
C
Thyroid gland
D
Gallbladder
검증된 단계별 안내1
Step 1: Understand what an endocrine gland is. Endocrine glands are glands that secrete hormones directly into the bloodstream to regulate various body functions.
Step 2: Identify the glands listed and their functions. The adrenal gland, pituitary gland, and thyroid gland are all endocrine glands because they release hormones into the blood.
Step 3: Consider the gallbladder's function. The gallbladder stores and concentrates bile, which is released into the digestive tract, but it does not secrete hormones into the bloodstream.
Step 4: Compare the gallbladder's role to that of endocrine glands. Since the gallbladder does not produce hormones for systemic distribution, it is not classified as an endocrine gland.
Step 5: Conclude that the gallbladder is the correct answer because it is not an endocrine gland, unlike the adrenal, pituitary, and thyroid glands.
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