13 Flashcards
VASCULARIZATION OF KIDNEYS
describe renal arteries and renal veins
Renal Arteries are branches of descending aorta. Ultimately, branches of it give rise to glomeruli.
Kidneys drained by Renal Veins which dump into inferior vena cava. (As body wall structures, they DO NOT dump into hepatic portal system.)
Sympathetic Innervation: of kidneys
Function of sympathetic innervation
T5-T9 greater splanicn & T10-T11 lesser splanicn (multiple branches entering into renal plexus). Synapse in nearby celiac ganglion.
may constrict blood flow to kidneys (afferent arterioles), decreasing overall kidney output.
INNERVATION OF KIDNEYS
Parasympathetic Innervation:
Function
Vagus nerve (of course!) Synapse on target organ.
may increase blood flow to kidneys, increasing kidney filtration function, but autonomics play a reduced role and is more important.
Reality is- the hormones and hormonal is much more imp- have targets but its really endocrine contronlling kidney function
VASCULARIZATION OF BLADDER
arteries/veins
originally from
PAIRED-because has to do with umbilical vessicles-derivitiave of gut with paired vasculature
Superior and Inferior Vesical Arteries
(Right and Left)
Superior and Inferior Vesical Veins
(Right and Left)
hindgut-cloacha
INNERVATION OF BLADDER
Sympathetic Innervation:
Function
Sympathetic Innervation: T12-L2. Lumbar splanchnic nerves, synapsing in inferior mesenteric plexus, leading to hypogastric plexus.
Sympathetic Function: inhibit constriction of muscular wall of bladder (detrusor), contract sphincters.
NNERVATION OF BLADDER
Parasympathetic Innervation:
Function:
Parasympathetic Innervation: S2-4. Pelvic nerve. Synapse right on bladder wall.
Parasympathetic Function: stimulate constriction of muscular wall of bladder (detrusor), relax sphincters.
pee yurself
symp response scared/angry-contract schnicter-pressurize ceolm- skeltal muscle increases blood flow to it to contract- internal schicter is smooth muscle
Sympathetic Innervation: T12-L2. Lumbar splanchnic nerves, synapsing in inferior mesenteric plexus, leading to hypogastric plexus.
travelling along the illac arteries/vessels follow internal illacs and thats how u get to the bladder
parasymp
on target structure rest ruminate urinate deficate