Male genital system, descent of testes, spermatic cord, testes, epididymis, vasectomy, prostate, penis

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Biomedical Science
BMS 301
Mark Frasier

3 October Descent of Testes Kidneys ascend, testes descend during fetal growth Differential growth rate (body continues growing, UG system does not) Gubernaculum is connective tissue attached from testicle (or ovary) to anterior abdominal wall Passes through inguinal canal Attaches to what will become scrotum in adult Layers of abdominal wall surround testes in adult Muscle fibers from internal abdominal oblique exist – cremaster muscle Controls testes height for temperature control Testis may get stuck in inguinal canal If it remains to age 4 – 6 ish → surgery Testis remains in abdomen, does not reach inguinal canal Cryptorchid testis – no viable sperm Spermatic cord After emergence from superficial inguinal ring – uses this name Contains ductus deferens, testicular artery and vein, genitofemoral (or testicular) nerve, lymphatic vessels Pampiniform plexus regulates temperature for viable sperm production Testes Sperm production Produces testosterone Epididymis Upon reaching tail, is single tube Head rests on testis top Tail becomes ductus deferens Sperm storage, become viable Vasectomy Ligation of ductus deferens Sterilization Reversible 50% no viable sperm (body will develop antib
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