Multiple Choice
In the hypothalamic-pituitary-thyroid (HPT) axis, thyrotropin-releasing hormone (TRH) released from the hypothalamus primarily targets which structure?
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16. The Endocrine System
The Hypothalamus and Pituitary Gland
Multiple Choice
Which anterior pituitary hormone directly stimulates ovulation in the female reproductive cycle?
A
Follicle-stimulating hormone (FSH)
B
Oxytocin
C
Luteinizing hormone (LH)
D
Prolactin (PRL)
Verified step by step guidance1
Identify the hormones listed and their general functions in the female reproductive cycle: Follicle-stimulating hormone (FSH), Oxytocin, Luteinizing hormone (LH), and Prolactin (PRL).
Recall that Follicle-stimulating hormone (FSH) primarily stimulates the growth and maturation of ovarian follicles, but does not directly cause ovulation.
Understand that Oxytocin is mainly involved in uterine contractions during labor and milk ejection during breastfeeding, not ovulation.
Recognize that Luteinizing hormone (LH) is responsible for triggering ovulation, which is the release of a mature egg from the ovarian follicle.
Note that Prolactin (PRL) primarily promotes milk production and does not play a direct role in ovulation.
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