ANP 1107 Lecture Notes - Lecture 14: Chromosome, Libido, Vocal Folds

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1107
• Professor: Jackie Carnegie

Document Summary

Anatomy and physiology of the male reproductive systems: gross and microscopic anatomy of the testes. The testes are located in the scrotum, the sac of skin and super cial fascia outside the abdominopelvic cavity at the root of the penis. The scrotum is more heavily pigmented than the rest of the body and has sparse hairs. The midline septum splits the scrotum and provides one compartment (testis). The exterior position provides essential temperature of 3 c lower than the core. There are two tunics in the testes: tunica vaginalis: outer, 2-layered, extension of the peritoneal membrane, tunica albuginea: brous capsule of testis (white coat), septal extensions divide each testis into 250-300 wedge shaped lobules. Each lobule consists of 1 to 4 coiled seminiferous tubules. The darts and cremaster muscles in the testes controls how close the testes are to the body for temperature regulation. Leydig cells are interstitial cells that produce androgens (testosterone).