Multiple Choice
Which endocrine gland is commonly referred to as the "master gland" because it regulates the activity of several other endocrine glands?
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16. The Endocrine System
The Hypothalamus and Pituitary Gland
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Which hormone primarily stimulates milk production in the mammary glands?
A
Follicle-stimulating hormone (FSH)
B
Prolactin (PRL)
C
Oxytocin
D
Thyroid-stimulating hormone (TSH)
Verified step by step guidance1
Understand the role of each hormone listed in the problem: Follicle-stimulating hormone (FSH) is mainly involved in reproductive processes such as stimulating ovarian follicle growth and sperm production.
Recognize that Thyroid-stimulating hormone (TSH) primarily regulates the thyroid gland and influences metabolism, not milk production.
Know that Oxytocin is involved in milk ejection (let-down reflex) during breastfeeding but does not stimulate the production of milk itself.
Identify that Prolactin (PRL) is the hormone responsible for stimulating the mammary glands to produce milk after childbirth.
Conclude that among the options, Prolactin is the hormone that primarily stimulates milk production in the mammary glands.
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