Flashcards in Male Reproductive Histology Deck (21):
What are the 3 accessory male glands?
Seminal vesicles, prostate gland, and bulborethral glands
What are seminal vesicles?
paired, convoluted pouch-like structures at the base of the urinary bladder
What do seminal vesicles secrete?
Secrete an alkaline viscous component of semen rich in the sugar fructose and pass it to the ejaculatory duct
What percentage of seminal fluid comes from the seminal vesicles?
What is the prostate gland?
A single doughnut-shaped gland that lies inferior to the urinary bladder and surrounds the upper portion of the urethra
What is the size of the prostate gland?
Size of a chestnut
What does the prostate gland secrete? How much of it makes up the total semen?
Alkaline fluid that constitutes 13-33% of semen
What does the prostate gland contain?
About 30-50 individual tubuloalveolar glands, each gland having its own duct that delivers the secretory product to the prostatic urethra
What are the glands of the prostate lined by?
Simple to pseudostratified columnar epithelium
What are bulborethral (cowpers) glands?
Paired glands about the size of peas
Where are bulborethral glands located?
Beneath the prostate on either side of the membranous urethra
What do bulborethral glands secrete?
Alkaline fluid that constitutes 7-10% of semen
What is the epididymis?
Two-comma shaped organs
Where are the epididymi located?
Along the posterior border of the testis
What do the epididymi consist of?
Mostly of tightly-coiled tubes
What is the epididymis lined by?
Ciliated pseudostratified columnar epithelium
What do the walls of the epididymi contain?
What is the function of epididymi?
Site of sperm maturation and storage of spermatozoa, it propels them toward the urethra during ejaculation
What is the vas deferens?
It is a duct at the lower posterior portion of the epididymis after the convolutions cease to a straight line
Where is the vas deferens located?
Runs along posterior border of epididymi and penetrates the inguinal canal, enters the pelvic cavity where it loops over the side and down the posterior surface of the bladder