ANP 1107 Lecture 5: Reproductive system

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1107
• Professor: Frank Christinck

Document Summary

Epididymis >> ductus (vas) deferens>> urethra>> outside. Accessory glands: seminal vesicles (2), prostate gland (1), bulbourethral glands (2) Scrotum: sac of skin and super cial fascia outside abdominopelvic cavity at root of penis. Exterior position provides essential temp, 3 degrees lower than core (33. 2 vs 36. 2) Aided by ability of scrotum to change surface area based on external temp (dartos and cremaster muscles) 2 tunics tunica vaginalis: outer 2 layered, derived from peritoneal membranes tunica albuginea: brous capsule of testis (white coat); septal extensions divide each testis into 250-300 wedge shaped lobules. Each lobule has 1-4 coiled seminiferous tubules. Testicular veins from pampinform plexus (help cool arterial blood) Spermatic cord: blood and lymph vessels, nerves, vas deferens. Head caps superior part of testis (receives sperm from seminiferous tubules) Body and tail contain highly coiled ducts of epididymis (uncoiled = ~6m) Sperm that enter epididymis are immature, nonmotile. ~20 days to transverse epididymis and gain ability to swim.