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location and structure of testes
location: found in the scrotum
structure: has numerous lobules - each containing seminiferous tubules; also contains the epididymus
site sperm production
site of sperm maturation and storage
seminiferous tubules in the testes
epididymis in the testes
the seminiferous tubules have 3 special cells. what are they and their functions?
Leydig Cells (stimulated by LH): produce testosterone
Sertoli Cells (stimulated by FSH): nourish developing sperm cells; blood-testes barrier
Myoid Cells: smooth muscles that contract the lumen of the tubules to move sperm toward the epididymis via peristalsis
what immature sperm cell does testosterone bind to?
spermatogonia