BIOL 212 Lecture Notes - Lecture 16: Secondary Sex Characteristic, Seminiferous Tubule, Ejaculatory Duct
31 Jul 2020
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Document Summary
Small, ovoid glands located near the kidneys during the developmental stage. Before or soon after birth, they descend through the inguinal canal into the scrotum. Hormone causing secondary sex characteristic changes in the male with the onset of puberty. The area between the scrotum and anus. Two compartments (sacs), each containing one testicle. Contains seminiferous tubules responsible for secreting testosterone. Sperm mature in the epididymis, becoming fertile and motile. Mature sperm are stored in lower portion of the epididymis. Enlarges to form a sac-like dilation (ampulla) near the prostate gland. Merges with the seminal vesicle to form the ejaculatory duct. A large part of the volume of semen. Surrounds the base of the urethra as it leaves the bladder. Transports thin, milky colored, alkaline secretions, which enhance the motility of the sperm and also help neutralize the secretions within the vagina.
