Male Reproductive #2 Flashcards
what are the two things that tubuli recti have to move sperm
microvilli
single flagellum
what is the epithelium of rete testis
simple cuboidal
what do the tubuli recti and the rete testis have in common
they both have flagellum
what is the collection of 10-20 tubules leading from the rete testis to the ductus epididymis
ductuli efferentes
what is the lining of the ductuli efferentes
simple
what has alternating clusters of non ciliates cuboidal and ciliated columnar cells
ductuli efferentes
what are the 3 important things about the cuboidal cells in the ductuli efferetns
- microvilli
- lysosomal granules
- reabsorb fluid from semen
what cells in the ductuli efferents aid in transporting the non motile spermatozoa toward the epididymis
ciliated columnar cells
what underlies the basil lamina surrounding the efferent ductules epithelium
a thin circular layer of smooth muscle
what are the 2 excretory genital ducts
- ductus epididymis
2. Ductus Deference
END part of the ampulla will be close to what
prostate
is ejaculatory duct inside or outside of the prostate
inside
what is the narrow highly coiled tubule that is 4-6 meters long
ductus epididymis
what surrounds ductus epididymis
CT with blood vessels
what is the lumen of the ductus epididymis lined with
pseudostratified columnar epithelium
what are the parts of the ductus epididymis
head
body
tail
what are the cells in the epithelium of the ductus epididymis
basal and principal cells
what are round and appear ot be undifferentiated and serve as precursors for columnar principal cells
basal cells
what is a name for lone irregular branching microvili
stereocilia
what has stereocilia on its luminal surface
principal cells
what specifically has pinocytic and coated vesicles in their apical portion supposedly for fluid resportion
principal cells
what secretes glycerophosphocholine a substance that can inhibit capacitation
principal cells
where does capacitation begin
epididymis
when is capacitation completed
when it reaches the oviduct
what is the process called when the sperm can fertilize an ovum
capacitation
the smooth muscle in circular layers under the basil lamina in the ductus epididymis does what
it undergoes peristaltic contraction that move the sperm toward vas deference
what is a straight tube with a thick muscular wall that goes from the ductus epididymis
vas deference
what is the epithelium of the ductus defernce
pseudostratified columnar ( stereocilia)
what does the muscualr wall of the vas deference consist of
inner and outer layers of longitudinally arranged smooth muscle AND they are seperated from each other by a middle circualr layer
what is the dialated part of the ductus defernce that leads to the prostate gland
ampulla
where is the epithelium thick and greatly folded in the vas def
in the ampulla
what is the straight continuos part of the vas def that is beyond where the vas def recieves ducts from seminal vessicle
ejaculatory duct
what does the ejaculatory duct lack
a muscular wall
the ejaculatory duct enters the prostate gland and terminates as what and where
as a slit
on the colliculus seminalis ( prostatic uretha)
what are the paired tortuous tubular glands that are located near the posterior aspect of the bladder
seminal vesicles
what is the epith. in seminal ves.
pseudostratified colunmnar ( like epid, and vas def)
what has cuboidal cells in its basal layer whose height is determined by testosterone
seminal vesicles
what has columnar cells that have yellow lipochrome pigment granules and secratory granules?
seminal ves.
facts about the lamina propria in the sem. ves.
it has fibroelastic CT that is surrounded by an inner circular and outer longitudinal layer of smooth muscle
the secratory product of what sis yellow and viscous and rich in fructose
seminal ves
the secretory product from the seminal vesicle makes up how much of the human ejaculate
70%
what is the largest accesory gland
prostate
how many tubuloalveolar glands in the prostate open into the prostatic urethra
30-50
what are the 3 layers that the glands of the prostate are arranged in around the urethra
central
transitional
peripheral
the glands of the prostate are surronded by what
fibroelastic capsule that contains smooth muscle
what divides the glands in the prostate into lobes
the stroma from the capsule
what is the epithelium of the glands of the prostate
simple or pseudo-stratified columnar epithelium
what can be calcified and can increase with age
prostatic concentrations
what are prostatic glands composed of
glycoprotein
where can prostatic concretions be observed
in the lumina of the glands
what influences the prostate to secrete
dihydrotestosterone
what secretes, white thin, fluid
prostate
what 4 things does the secretion from the prostate have
- proteolytic enzymes
- citric acid
- acid phosphatase
- lipids
in prostatic cancer one will see elevated what
acid phosphatase blood levels (diagnostic tool)
cowpers glands?
bulbourethral glands
where are the bulbourethral glands located
adjacent to the membranous urethra
what empties clear secretion into the lumen of the membranous urethra to lubricate it
b. glands
what is the epith. of b glands
simple cuboidal or columnar
the wide fibroelastic septa of the b glands has what in it
smooth muscle ans skeletal muscle
what contains the penial spongy urethra
the corpus spongiosum
what surrounds the corpus cavernosum and spongiosum and is under the skin of the penis
loose CT
what happens to the skin of the penis distally?
it lacks hair follicles and has a few sweat glands
is there adipose tissue in the hypodermis of the penis
no, there is smooth muscle
what is the epith. of the prepuce
stratified squamous nonkeratinized epithelioum
the arrangemnt of the dense collagen bundles in what allows for the extensibility of the penis during erection
tunica albuginea
what is the name of the mucus secreting glands that are present throughout the length of the penile urethra
glands of Littre
What is known as the terminal end of the corpus spongiosum
the glans penis
what does the glans penis contain
dense connective tissue and longitudinal muscle fibers
erection is mediated by what
tactile or erotic stimulation
parasympathetic impulses dilate what
helicine arteries
what is ejacualtion followed by?
detumescence (subsidizing from sexual arousal)
