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17 Cards in this Set

  • Front
  • Back
germ cells migrate to genital ridge
5wks
when do seminiferous cords appear
6 and 7wks
when is testicular development complete
3 months
when do testicles descend
7th month
where is MIF produced
sertoli cells - inhibit mullerian ducts
when do external genetalia form
9th to 12th weeks

testosterone key
LH acts on (in the male)
Leydig cells to produce testosterone
FSH acts on (in the male)
seminiferous tubles -> spermatogenesis
inhibin
made by sertoli cells to neg feedback to FSH
what negatively feeds back on LH
testosterone
sites of testosterone production
leydig cells

ADRENAL GLAND
effects of testosterone
muscle growth

larynx growth

sexual hair growth - chest, face, genital area

sebecous glands stimulate - acne

maturation of sperm
5alpha reductase
testosterone converted to DHT
acrosome
contains hyaluronidase to digest proteoglycans
site of sperm storage
vas deferens
rule of thumb number of sperm needed to be deposited to fertilize one egg
5 million
majority of ejaculate originates from
seminal vesicles