NUR 612 MODULE 3 CHAPTER 44 |COMPLETE STUDY GUIDE
WITH 100% ACCURATE QUESTIONS &ANSWERS.
EXCELLENCE GUARANTEED.
the hypothalamic-pituitary-ovarian (HPO) axis is the endocrine system responsible for
regulating: Answer: - menstrual cycling
- ovulation
- fertility
- estrogen and progesterone production
- maintenance of reproductive tissues
Functions through a series of hormonal feedback loops
The hypothalamus releases what hormone in the HPO axis Answer: Gonadotropin-Releasing
Hormone (GnRH)
Gonadotropin-Releasing Hormone (GnRH) Answer: - Secreted in a pulsatile fashion
- Pulsatility is critical
- Stimulates the anterior pituitary
If GnRH becomes continuous rather than pulsatile, LH and FSH secretions _____________.
Answer: decreases
GnRH stimulates release of Answer: Follicle-Stimulating Hormone (FSH) & Luteinizing
Hormone (LH)
Functions of Follicle-Stimulating Hormone (FSH) Answer: - stimulates follicular growth
- supports granulosa cells
1
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, - promotes estrogen production
Functions of Luteinizing Hormone (LH) Answer: - stimulates theca cells
- triggers ovulation
- promotes corpus luteum formation
- supports progesterone production
What hormone does the ovary produce in the HPO axis? Answer: Estrogen (primarily estradiol)
& Progesterone
Functions of estrogen Answer: - endometrial proliferation
- secondary sexual characteristics
- bone preservation
- cardiovascular protection
When is progesterone mainly produced? Answer: after ovulation
Functions of progesterone Answer: - prepares endometrium for implantation
- maintains pregnancy
- suppresses uterine contractions
Normally, estrogen + progesterone inhibit these hormones via negative feedback to prevent
excessive follicle stimulation Answer: - GnRH
- FSH
- LH
When does positive feedback occur? Answer: - just before ovulation (ovulation occurs approx.
24-36 hours later)
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
WITH 100% ACCURATE QUESTIONS &ANSWERS.
EXCELLENCE GUARANTEED.
the hypothalamic-pituitary-ovarian (HPO) axis is the endocrine system responsible for
regulating: Answer: - menstrual cycling
- ovulation
- fertility
- estrogen and progesterone production
- maintenance of reproductive tissues
Functions through a series of hormonal feedback loops
The hypothalamus releases what hormone in the HPO axis Answer: Gonadotropin-Releasing
Hormone (GnRH)
Gonadotropin-Releasing Hormone (GnRH) Answer: - Secreted in a pulsatile fashion
- Pulsatility is critical
- Stimulates the anterior pituitary
If GnRH becomes continuous rather than pulsatile, LH and FSH secretions _____________.
Answer: decreases
GnRH stimulates release of Answer: Follicle-Stimulating Hormone (FSH) & Luteinizing
Hormone (LH)
Functions of Follicle-Stimulating Hormone (FSH) Answer: - stimulates follicular growth
- supports granulosa cells
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, - promotes estrogen production
Functions of Luteinizing Hormone (LH) Answer: - stimulates theca cells
- triggers ovulation
- promotes corpus luteum formation
- supports progesterone production
What hormone does the ovary produce in the HPO axis? Answer: Estrogen (primarily estradiol)
& Progesterone
Functions of estrogen Answer: - endometrial proliferation
- secondary sexual characteristics
- bone preservation
- cardiovascular protection
When is progesterone mainly produced? Answer: after ovulation
Functions of progesterone Answer: - prepares endometrium for implantation
- maintains pregnancy
- suppresses uterine contractions
Normally, estrogen + progesterone inhibit these hormones via negative feedback to prevent
excessive follicle stimulation Answer: - GnRH
- FSH
- LH
When does positive feedback occur? Answer: - just before ovulation (ovulation occurs approx.
24-36 hours later)
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
