Histology Flashcards
the nephron is formed by renal corpuscles and renal tubules, what is the function of the corpuscle
produces and collects golemrular filtrate
what is the histology of the corpuscule
bowman’s capsule covers the glomerulus.
capillary endothelium and specialised epithelium separates the blood from filtrate.
what is the specialised epithelium made up of
podocytes
what does the endothelium contain
pores
T/F: the basal lamina is thicker than usually between these 2 membranes
true- contains many GAGs
what is the core of the corpuscle made up of
mesangium which produces mesangial cells (remove debris)
function of proximal convoluted tubule
reabsorption of water, ions, glucose- 70% of Na and water reabsorbed here
what structures does a Proxima tubule cell contain
microvilli, mitochondria, junctional complex, vesicles, lysosome, basal lamina, endothelium of capillary
loop of henle does what
creates hyper osmotic environment in medulla
histology of LH
thick descending limb > thin DL > hairpin loop > thin ascending > thick ascending > distal tubules
- thick limbs- simple cuboidal epi
- thin limbs- simple squamous epi
- blood supply- vasa recta
distal convoluted tubule does what
acid-base balance
histology of DCT
occasional microvilli, mitochondria, Golgi apparatus, interdigitating process, basal lamina
smaller and more obvious lamina due to spareness of microvilli
aldosterone acts here
function of collecting tubules/ducts
reabsorption of water under ADH control
where are collecting tubules found
in cortex along with straight segments of proximal and distal convoluted tubules
what epithelium is found in conduction and storage of urinary system
transitional epigastric (urothelium)- stratified epi with umbrella cells at luminal surface > lamina propria > SM
