male reprod. Flashcards
Gamete transport
Teste/sem. tubules.–>Straight tubules–>rete testis –>efferent ductules
Rete testis
located in the medianstinum
All semif. tubules drain here
dense CT w/ BV
Smp. Colum./cub.
Efferent ductules
AKA ductuli efferents
Pseudo strat.
-tall/colum.=cilia to move immature/non-motile sperm to epididmus
-short/cub.=microvilli to reabsorb fluid secreted into tubules
Irreg. shape lumen b/c tall/short epith.
Basal cells=precursor cell
Epididymis
Spermatid r modified becoming matured sperm
-condense nuclear DNA
-additional loose cytop.
-change acrosomal memb.
-motile=change phosphatase activity
:2dry mess. (CAMP/Ca2+), change intracell pH
Prinicple cells=pseudo. column w/ sterocilia
- stereocilia detect the contents need w/in the lumen to mature sperm
-sensitive to andorgen
-secrete glycosylated produc.
:aid in sperm mature
-participation in decap.
Extratesticular gland/duct the sperm travel after effernt duct.
epidiymus–>vas deferen–>join seminal vessicle –>ejact. duct–>urethra (through prostate)
Ductus deferen
AKA vas deferen
Sperm–>spermatic cord to prostatic epith.
line w/ pseudo w/ sterocilia
Thick muscular=inner long, mid. circular, outer long.
-remember a circular structure and sm. muscle orientaiton is dif.
Near pempiniform plexus
-vn. w/ thick bundles of longitudinal muscle –>tunica intima and adventitia ‘
Ext.=adipose and loose CT
Prostate
Function=gland release product into urethra
-contain enzyme to maintain seminal fluid as liq.
Prost. gland=smp. column./psuedo. (arranged in folds)
Periurthral mucous gland=central zone
-affecting urination
prostatic dis.
-inflam prostate impacting urethra and urinating
-symp.=difficult to urine
-issue areas
:transitional zone/periuthral zone (inflam)
:central zone=cancer
Prostate histo.
Fibromuscular stroma -lighter stain -has sm. muscle cell Secretory=lighter stain -incre. number of myoepith. Ducts=darker -mainly immune cells Gland=tall column w/ basal
Seminal vesicl location
Paired, elongated, highly folded tubular gland
Mucosa=pseudo and LP
-thin sm. muscle and fibrous coat
:inner and longi. muscle
-highly folded=gives app. of more than 1 lumen but ONLY 1
-no epith. modification
-ext. CT
Androgen gland depen.
Viscous secretion
-fructose=metabolic substrate for sperm
-smp. sugar, AA, asboric acid and prostaglandin
Controled by testos.
Each SV=outpocket of ampula for vas deferen/def. duct.
Penis
Structure
- skin
- others things
- T. Albuginen=Dense CT
- Corpus Cavernosum (2)
- Corpus spongisoum(1)
Corpus Cavernosum
Deep penis artery
-branches=helicin arter
lined w/ endoth.
has sinuses to go into urethra
Corpus Spongiosum
Houses the urthra
-pseduo/st. columnar
Gland of litter=mucous production to incre. move.
Erection of penis
Hydrolysis syst. Ateriovenosus anastaom. -open=no erection -closed=erection and blood goes to penis/incre. size :blood fills corpus cavernosum