XV - Male Reproductive System Flashcards
Male Genital Ducts: spermatogenic, Sertoli cells, germ cells
seminiferous tubules
Male Genital Ducts: produce sperm
seminiferous tubules
Male Genital Ducts: Sertoli cells in proximal portions, simple cuboidal in distal portions
straight tubules (tubuli recti)
Male Genital Ducts: convey sperm into the rete testis
straight tubules (tubuli recti)
Male Genital Ducts: simple cuboidal, channels with sperm from all seminiferous tubules
rete testis
Male Genital Ducts: alternating patches of simple cuboidal non-ciliated & simple columnar ciliated
efferent ductules
Male Genital Ducts: absorb most fluid from seminiferous tubules, convey sperm into the epididymis
efferent ductules
Male Genital Ducts: pseudostratified columnar with small basal cells and tall principal cells bearing stereocilia
epididymal duct
Male Genital Ducts: site for sperm maturation and short-term storage, expels sperm at ejaculation
epididymal duct
Male Genital Ducts: pseudostratified columnar with fewer stereocilia
ductus (vas) deferens
Male Genital Ducts: carries sperm by rapid peristalsis from the epididymis to the ejaculatory ducts
ductus (vas) deferens
Male Genital Ducts: pseudostratified and simple columnar
ejaculatory ducts
Male Genital Ducts: mix sperm and seminal fluid, deliver semen to the urethra where prostatic secretion is added
ejaculatory ducts
Highly tortuous tubes enclosed by a CT capsule
seminal vesicles
Seminal Vesicles: complex folds lined by simple or pseudostratified columnar epithelium rich with secretory granules
lumen
Produces fluid which makes up about 70% of ejaculate
seminal vesicles
Seminal Vesicles: major energy source for sperm
fructose
Seminal Vesicles: stimulate activity in the female reproductive tract
prostaglandins
Seminal Vesicles: allows semen to coagulate after ejaculation
fibrinogen
Components of Seminal Fluid
fructose, prostaglandins, fibrinogen, inositol, citrate, other metabolites
Collection of 30-50 tubuloacinar glands lined with simple or pseudostratified columnar epithelium
prostate
Prostate: 5% of volume, periurethral mucosal glands
transition zone
Prostate: 25% of volume, periurethral submucosal glands
central zone
Prostate: 70% of volume, main glands
peripheral zone
Deposited glycoproteins and keratan sulfate with no physiologic or clinical significamce
corpora amylacea
paired glands, empty into proximal part of penile urethra, tubuloacinar with simple columnar epithelium, release a clear mucus-like secretion that coats and lubricates the urethra in preparation for imminent passage of sperm
bulbourethral (Cowper’s) glands