Testes parts

Question 1

SRY gene
-what does it provide
-what does it do to the genes involved in the development of the male reproductive system
-what does it do to the female sex determining pathway

what are primary sex characteristics

Answer 1

instructions for making a protein called the sex determining region Y protein
-unpregulates the genes
-surpresses the pathway which would otherwise continue to be active

-the structures that play a direct role in reproduction

Question 2

Testes
-what are the 2 functions

Answer 2

1. produce sprem (spermatogenisis)
2. produce male sex hormones (androgens like testosterone)

Question 3

Seminiferous tubules
-location for what
-function
-contains what cells, and what do they do?
-what hormone stimulates spermatogenisis

Answer 3

-sperm cell production/spermatogenisis
-house the spermatogonium cells (2n=46 aka DIPLOID) which will develop into mature sperm
-contains sertoli cells which nourish sperm cells and produce inhibit
-FSH

Question 4

Interstitial Cells
-found where
-stimulated by what
-produce what

Answer 4

-outside/between seminiferous tubules
-LH
-produce male androgen, testosterone

Question 5

Scrotum
-what is it
-what decends into it and how
-temperature conditions and why
-if they dont decent into it then what may that mean

Answer 5

-pouch of skin below pelvic region
-few degrees cooler than abdominal cavity for sperm to develop
-male may be sterile