3. SRY 1) MIS 2) T during fetal development Gnrh ( hypothalamus) FSH and LH (pituitary) LH goes to testicle and makes “T” which with FSH initiates sperm production
4. In Testicle, Leydig cells use cholesterol androstenedione T T DHT prostate, skin, scalp, body hair follicles …. High LDL Low HDL Primary characteristics Sexual function Behavior RBCs T secondary sex characteristics
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7. Reproductive Cells in testicles Nurture sperm Sertoli cells Make sperm Germ cells Make T Leydig cells