ANSC 23000 Lecture Notes - Lecture 16: Male Accessory Gland, Seminiferous Tubule, Spermatic Cord
28 Nov 2018
School
Department
Course
Professor
Document Summary
Consists of the testicles, secondary sex organs, and three accessory sex glands. Work in concert for formation, maturation and transport of spermatozoa, which are eventually deposited in the female reproductive tract. Secondary sex organs: epididymis, vas deferens and penis. Accessory sex glands: seminal vesicles, prostate and bulbourethral gland (cowper"s gland). Located outside the body cavity in the scrotum. Functions: producing the spermatozoa, and producing the male hormone, testosterone. Normal sperm formation occurs only at 4 degrees to 5 degrees below body temperature. Scrotum provides physical protection to the testicle and helps regulate the temperature for optimum spermatozoa development. Chryptorchidism: one or both testicles occasionally fail to descend into the scrotum during embryological development and are retained in the body cavity. Hormone production by chryptorchid males is near normal and the male develops and behaves like a normal male, but will generally be subfertile. This condition is genetically inherited, therefore such males should not be used for breeding.
