Endocrinology Questions, Part 3

49 Questions | By Ltbrown87 | Updated: Mar 21, 2022 | Attempts: 424

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1.

LH stimulates _____ release from _____ cells.
- A.
  
  Testosterone, leydig
- B.
  
  Testosterone, sertoli
- C.
  
  Inhibin, sertoli
- D.
  
  Inhibin, leydig
2.

FSH stimulates _____ release from _____ cells.
- A.
  
  Testosterone, leydig
- B.
  
  Testosterone, sertoli
- C.
  
  Inhibin, sertoli
- D.
  
  Inhibin, leydig
3.

Testosterone secreted from LH cells _____ GnRH and LH secretion and _____ spermatogenesis.
- A.
  
  Inhibits, inhibits
- B.
  
  Stimulates, stimulates
- C.
  
  Inhibits, stimulates
- D.
  
  Stimulates, inhibits
4.

Inhibin is secreted from _____ cells and _____ FSH secretion.
- A.
  
  Leydig, stimulates
- B.
  
  Leydig, inhibits
- C.
  
  Sertoli, stimulates
- D.
  
  Sertoli, inhibits
5.

DHT and testosterone are produced in the _____, while androstenedione is produced by the _____.
- A.
  
  Testis, adrenals
- B.
  
  Adrenals, testis
6.

Exogenous testosterone _____ sperm production.
- A.
  
  Inhibits
- B.
  
  Enhances
7.

Testosterone is responsible for:
- A.
  
  Differentiation of the internal male geitalia (except prostate)
- B.
  
  Growth spurt - penis, seminal vesicles, sperm, muscle, RBC's
- C.
  
  Deepening of the voice
- D.
  
  Closing of the epiphyseal plates (via conversion to estrogen)
- E.
  
  Libido
- F.
  
  Differentiation of penis, scrotum, prostate during fetal development
- G.
  
  Prostate growth, balding, sebaceous gland activity
8.

DHT is responsible for:
- A.
  
  Differentiation of the internal male geitalia (except prostate)
- B.
  
  Growth spurt - penis, seminal vesicles, sperm, muscle, RBC
- C.
  
  Deepening of the voice
- D.
  
  Closing of the epiphyseal plates (via conversion to estrogen)
- E.
  
  Libido
- F.
  
  Differentiation of penis, scrotum, prostate during fetal development
- G.
  
  Prostate growth, balding, sebaceous gland activity
9.

Correct order of androgen potency:
- A.
  
  DHT > testosterone > androstendione
- B.
  
  Androstendione> DHT > testosterone
- C.
  
  DHT> androstendione > testosterone
- D.
  
  Testosterone> DHT> androstendione
10.

Estradiol is produced in the _____; estriol is produced in the _____; estrone is produced in the _____
- A.
  
  Ovary, placenta, blood
- B.
  
  Placenta, blood, ovary
- C.
  
  Placenta, ovary, blood
- D.
  
  Blood, placenta, ovary
- E.
  
  Ovary, blood, placenta
11.

LH stimulates _____ release from _____ cells.
- A.
  
  Androstenedione, theca
- B.
  
  Androstenedione, granulosa
- C.
  
  Estrogen, theca
- D.
  
  Estrogen, granulosa
12.

FSH stimulates _____ release from _____ cells.
- A.
  
  Androstenedione, theca
- B.
  
  Androstenedione, granulosa
- C.
  
  Estrogen, theca
- D.
  
  Estrogen, granulosa
13.

Estrogen actions: 1) _____ and _____ development; _____ fat distribution 2) Follicle _____, endometrial _____, _____ myometrial excitability 3) _____ regulation of estrogen, LH, FSH receptors; _____ of FSH and LH --> LH surge; _____ prolactin secretion (but not at the breast) 4) _____ SHBG, _____ HDL, _____ LDL
14.

Progesterone is produced by: 1) 2) 3) 4)
15.

Progesterone actions: 1) _____ endometrial glandular secretions 2) _____ pregnancy 3) _____ myometrial excitability 4) Production of thick _____ to inhibit sperm entry 5) _____ body temperature 6) _____ LH and FSH 7) Uterine smooth muscle _____ 8) _____ estrogen receptor expressivity
16.

Follicular phase is the same as _____ phase and _____.
- A.
  
  Proliferative; varies in length
- B.
  
  Proliferative; is a constant 14 days
- C.
  
  Secretory; varies in length
- D.
  
  Secretory; is a constant 14 days
17.

Luteal phase is the same as _____ phase and _____.
- A.
  
  Proliferative; varies in length
- B.
  
  Proliferative; is a constant 14 days
- C.
  
  Secretory; varies in length
- D.
  
  Secretory; is a constant 14 days
18.

Ovulation + 14 days =
19.

Progesterone _____ inicates ovulation has occurred.
- A.
  
  Elevation
- B.
  
  Absence
20.

Put the following into correct order: a) progesterone b) LH surge c) menstruation d) estrogrn e) ovulation
21.

_____ is defined as follicle rupture and causes increased basal temperature.
22.

HCG is produced by the _____.
23.

HCG functions: 1) Maintains the _____ for the 1st trimester by acting like _____ 2) _____ detection via _____ sample 3) _____ in pathologic states (e.g. hyatidiform moles, choriocarcinoma, gestational trophoblastic tumors)
24.

Average age of menopause onset is _____ years old - earlier for smokers.
25.

_____ FSH levels are the best test to confirm menopause.
- A.
  
  Elevated
- B.
  
  Reduced
- C.
  
  Fluctuating

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Endocrinology Questions, Part 3

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