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Ch. 26 Reproductive System Men
Study for Final Exam
44
Anatomy
Undergraduate 4
04/28/2009

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Term
dartos muscle
Definition
muscle around the scrotum wall
Term
cremaster muscle
Definition
muscle that wraps around ball and is extension of inner muscle
Term
tunica vaginalis
Definition
outpocketing of peritoneum and double layered
Term
tunica albuginea
Definition
'white coat' - fibrous capsule of the testis
Term
seminiferous tubule
Definition
'sperm factories' - where sperm are produced
Term
myoid cells
Definition
sooth muscle like cells around each seminiferous tubule
Term
tubulus rectus
Definition
straight tubule that forms from the converging of the seminiferous tubules
Term
rete testis
Definition
tubular network on posterior side if testis. forms from converging tubulus rectus
Term
interstitial cells
Definition
cells that create testosterone
Term
pampiniform plexus
Definition
vein plexus that surrounds the testicular arteries and cools the blood. lowers testicular body temp.
Term
spermatic cord
Definition
cord in which the nerves, arteries and veins from and to the testis pass through
Term
glans penis
Definition
head of the dick
Term
prepuce
Definition
another name for foreskin
Term
corpus spongiosum
Definition
spongy stuff of the dick that urethra passes through
Term
corpora cavernosa
Definition
paired dorsal erectile bodies of the dick
Term
bulb of the penis
Definition
origin of the penis inside of the body is known as the
Term
crura of the penis
Definition
'legs' of the penis. attach to the bones. most proximal.
Term
epididymis
Definition
where sperm are stored. can survive here for months
Term
ampulla
Definition
widening at the end of the vas deferens
Term
ejaculatory duct
Definition
short duct where seminal vesicle joins vas deferens. before urethra
Term
seminalplasmin
Definition
substances that suppress womans immune response in vagina and also antibiotic properties
Term
erection
Definition
mainly parasympathetic control of this. allows penis to slay vagina.
Term
ejaculation
Definition
mainly sympathetic control. allows for dudes to make a baby mama
Term
spermatogenesis
Definition
creation of sperm
Term
spermatogenic cells
Definition
term for all sperm producing cells in all stages
Term
spermatagonia
Definition
stem cells that have not yet differentiated. will form sperm
Term
Type A daughter cell
Definition
cell that, once divided, sticks around in the spermatagonia phase
Term
Type B cell
Definition
cell type that, once divided, goes on to become a sperm
Term
primary spermatocyte
Definition
first stage after mitotic division where a type B cell goes along developmental path
Term
2 secondary spermatocytes
Definition
occur from meiosis of the primary spermatocyte
Term
spermatid
Definition
stage after secondary spermatocyte when meiosis II is completed
Term
spermiogenesis
Definition
elongation, growing of a tail, and creation of lots of mitochondria. process from spermatid to sperm
Term
head of sperm
Definition
contains genetic material of sperm
Term
acrosome
Definition
part of sperm containing hydrolytic enzymes; comes from golgi apparatus
Term
midpiece
Definition
area of sperm full of mitochondrion
Term
sustentacular cells
Definition
cells that provide nourishment to and support sperm along their developmental phases
Term
basal compartment
Definition
compartment of the sustentacular cells that holds the early stages of sperm (spermatagonium; primary spermatocytes)
Term
adluminal compartment
Definition
includes meitotically active spermatocytes and faces tubule lumen
Term
testicular fluid
Definition
produced by sustentacular cells and pressure pushes sperm through epididymis
Term
blood-testis barrier
Definition
causes sperm to be unable to get into bloodstream.
Term
GnRH
Definition
causes release of FSH and LH
Term
(ABP) Androgen Binding Protein is produced, which binds to testosterone
Definition
FSH causes this in the sustentacular cells
Term
Testosterone produced by interstitial cells
Definition
LH causes this to occur in guys
Term
inhibitin
Definition
hormone that inhibits spermatogenesis by inhibiting GnRH
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