NURS 461 Lecture Notes - Lecture 1: Labia Majora, Vas Deferens, Ejaculatory Duct
Document Summary
Anatomy & physiology of the reproductive systems: male & female. Male reproductive system: three groups of structures, testes. Undescended testis cause infertility later in life. Testis make sex cells (sperm) in the seminiferous tubules and testosterone in interstitial cells. Testosterone stimulates production of sperm and secondary sex characteristics: duct system. Epididymis -> vas deferens-> ejaculatory duct (formed by union of vas deferens and seminal vesicle: accessory structures. Seminal vesicles: creates seminal fluid (alkaline fluid high in fructose) which has nourishment for sperm. Seminal fluid is empties into the ejaculatory duct. Prostate gland: 2 functions- 1: contract smooth muscle to provide force for ejaculation and. 2: secretes fluid to aide in sperm motility. Bulbourethral gland (cowper"s gland) secrete alkaline material to coat urethral lining prior to ejaculation. 2 parts: shaft and glans penis: foreskin covers the glans at birth, but can be removed via circumcision. 8. 24. 16: 2 on either side of uterus; embedded in the round ligament.
