W4 Kidneys and Salivary glands Flashcards
what is the urinary system made of
2 kidneys
2 ureters
bladder
urethra
what blood vessel does unfiltered blood enter through
renal artery
which blood vessel does filtered blood leave from
renal vein
what does the medulla in kidney do
regulates conc of urine
what is the job of cortex of kidney
where filtration begins and where the nephron starts
what is the job of the capsule of the kidney
made of connective tissue supported by stromal cells to preserve hydrostatic pressure
what does the nephron do
production of urine
where does ultrafiltration occur
renal corpuscle
which 2 ducts of renal tubules are found in renal cortex
PCT
DCT
where is the loop of henle found
mostly in the medulla
what are long nephron’s called
juxtamedulliary
what are short nephron’s called
cortical
how does the afferent arteriole react to pressure
at low pressure renin converts angiotensinogen to angiotensin 1 to constrict arteriole
where is renin stored
granules of smooth muscles cells
what does the production of angiotensins do
increase blood pressure
what is the renal corpusle made of
glomerulus
bowmans capsule
vascular pole
urinary pole
what is the glomerulus made of
capillaries lined by endothelial cells
what is the outer parietal layer of bowman’s capsule
simple squamous epithelium
what is the inner visceral layer of bowman’s capsule
podocytes
what occurs at the vascular pole
afferent arterioles become efferent arterioles
what happens at urinary pole
where ultrafiltrate leaves bowman’s capsule to PCT
how is the bowmans capsule positioned
surrounds the glomerulus
what is glomerulus comprised of
afferent and efferent arterioles
what do podocytes do
filtration of blood due to thin membrane
