Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
|
what is included in the urinary system
|
kidneys
ureters urinary bladder urethra |
|
|
where are the kidneys located
|
behind the parietal peritonium (retroperitoneal)
|
|
|
what surrounds the kidneys
|
renal capsule (fibrous)
perirenal fat renal fascia pararenal fat |
|
|
what enters the kidney via the hilum
|
renal vein, renal artery, ureter
|
|
|
what is contained in the renal sinus (the hollow part of the organ)
|
renal pelvis, calyces, blood vessels, lymph, nerves, fat
|
|
|
what part of the nephrons is in the outer cortex
|
the renal corpuscles and convoluted tubules
|
|
|
what part of the nephrons are in the medulla
|
loop of henle and collecting tubes occupy medullary rays and medullary pyramids
|
|
|
nephron + associated collecting tubule=
|
uriniferous tubule
|
|
|
describe the anatomy of the renal corpuscle
|
the glomerulus is capped by visceral layer of the bowman's capsule
and the urinary space...all covered by parietal layer of bowman's capsule |
|
|
what makes up the filtration barrier between the glomerulus and bowman's capsule
|
-endothelial cells
-basement membrane -podocytes (bowmans) -slit diaphragms of podocytes |
|
|
what signals renin secretion
|
signals from the macula densa cells of the distal convoluted tubules
|
|
|
what muscle makes up the wall of the body of the bladder
|
detrusor m
|
|
|
durign urination, stimuli of fullness are carried by the ______________ via the _______________ to the brain
|
by the *visceral afferent fibers* via the *pelvic splanchnic nerves* to the brain
|
|
|
what muscles relax for urination
|
levator ani and external urethral sphincter
|
|
|
what is the visceral response to the relaxation or urination muscles
|
relaxation of inhibitory sympathetic nerves from inferior hypogastric plexus
stimulation of parasympathetic nerves from pelvic splanchnics whcih effects bladder contraction |
|
|
what is the tunica albuginea
|
the fibrous capsule of the testis, divides lobules
|
|
|
what are the seminiferous tubules
|
site of sperm production, hairpin shaped
|
|
|
sertoli (sustentacular) cells
|
divide the seminiferous tubules into two compartments
creat the blood-testis barrier with their tight intercellular junctions |
|
|
what do these tight junctions of the blood testis barrier do?
|
block spermatocytes, spermatids, and sperm from blood
but not spermatogonia! |
|
|
what are the cells of Leydig
|
in the interstitium of the testes, produce and secrete testosterone into blood and lymph capillaries
|
|
|
how is sperm conduced out of the testes
|
seminiferous tubules-> straight tubules-> rete testis tubules-> efferent tubules--> epididymis
|
|
|
what is the epididymis
|
comma shaped structure that hugs the outer surface of the testis, site of sperm maturation
|
|
|
where does the sperm go from the epididymis?
|
it is conducted the the vas deferens (a muscular tube) where seminal vesicle secrete semen fluid
|
|
|
where does the fluid go after the vas deferens/seminal vesicles?
|
into the ejaculatory duct
|
