BIOM20002 Lecture Notes - Lecture 67: Abdominal Wall, Ligament, Urogenital Triangle
Document Summary
Has openings for urethra (male and female) and vagina (female) Space above perineal membrane and enclosed largely by urogenital hiatus above. Contains skeletal muscle that forms sphincters around urethra, glands and neurovascular structures that supply the penis. No vaginal sphincter muscle in deep perineal pouch. Testes contains seminiferous tubules (approx 400- 600 coiled structures) surrounded by thick connective tissue (tunica albuginea) Spermatozoa are produced in edges of seminiferous tubules, collected in the rete testes and stored in epididymus until ejaculation. Spermatozoa mature (acquire ability to move and fertilize an ovum) while stored in epididymus. Epididymis is a single coiled structure that forms a cap over one side of testes. Superior expanded portion is coiled tube, inferiorly the tube leaves the testes via the vas deferens. Scrotum outside body cavity because development and function of sperm requires a lower temp. Gonadal development occurs along posterior abdominal wall - begin near kidneys.
