Physiology: Reproduction System

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/5

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

6 Terms

1
New cards

Sexual Differentiation

  1. Chromosomal sex - set at fertilisation

  2. Genetic sex - presence of SRY gene on he Y chromosome

  3. Gonadal sex - type of gonad: presence of the SRY gene

  4. Anatomical sex - internal and external genitalia: exposure to testicular hormone.

2
New cards

Anatomical sex: Paramesonephric ducts

  • Precursor of uterine tube, uterus and upper part of vagina

  • AMH secretion by the testes causes regression of these ducts.

  • No stimulation by T or AMH = continues to develop.

3
New cards

Anatomical sex: Mesonephric ducts

  • precursor of epididymis, vas deferents, seminal vesicles, ejaculatory ducts

  • Testosterone stimulates the development of these ducts.

4
New cards

Anatomical sex: External genitalia (penis + scrotum)

  • At 4-6 weeks genital tissue is bipotential

  • development requires exposure to testosterone and its local conversion to dihydrotestosterone by 5-alphas reductase.

  1. Genital tubercule:

    • glans penis

  2. Urethral fold

    • urethra (fusion of folds)

  3. Labioscrotal

5
New cards

Anatomical sex: External genitalia (clitoris + labia)

  • No exposure to testosterone or DHT

  1. Genital tubercule develops into:

    • clitoris

  2. Urethral folds:

    • labia minora

  3. Labioscrotal swelling:

    • labia majora

6
New cards

Androgens

  • family of steroid hormones derived from cholesterol via enzymatic conversion

  • Defined as a substance capable off of developing and maintaining masculine characteristics

  • Produced by testes, adrenal glands, and thecal cells of ovarian follicle