PHYSL210B Lecture Notes - Lecture 11: Seminiferous Tubule, Seminal Vesicle, Spermatic Cord
13 Mar 2019
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Document Summary
Spermatic cord: arterial and venous vessels; arterial and venous vessels form counter current for heat exchange; blood reaching testes is cooled down when heat is transferred from artery to vein. Individuals with testes that have not descended can still produce testosterone. Wearing tight underwear or pants can lead to improper cooling of the testes and low sperm count. In obsess males, fat in the scrotum traps heat (insulator) and contributes to low sperm count and low viability of sperm. Using heated seats, taking baths in hot bathtub and putting a laptop on lap can impact spermatogenesis negatively. Usually fertility is reversed if practices are improved. Seminiferous tubule site of spermatogenesis; large surface area; tubules join my together to form rete testes, which converge to effect ductulus while join up to form the epididymis which gives rise to the vas deference. Interstitial tissue surrounds the seminiferous tubules, features blood vessels and. Spermatic cord passes to testes through inguinal canal.
