what is the hilum of the kidney and what is it for?
it is a depression of thin the kidneys surface where vessels and nerves pas where ureter exits the kidneys and the renal pelvis is the proximal end of the ureter
what is the renal sinus
fat filled cavity enclosing the renal atery vein and lymph and the ureter and nerve fibers
what is the capsule of the kidney made out of
outer layer has dense CT collagen and fibroblasts and niner layer has myofibroblasts
what is the cortex of the kidney
outer region, tissue over the base of pyramid is the cortical arch,
what are the renal comums of bertins
consisting of the cortical tissue but resides in the between and is a part of the medulla.
what does the apex of each pyramids drain its unrine into
minor calyx, to major calyx to ureter to bladder to potty,
what is the cortical labyrinth
contains renal corpuscles, convoluted tubes, and collecting tubes
what are the medullary rays
proximal straight, distal and collecting ducts.
what is a uriniferous tubule
a nephron and its collecting tuble
what is a nephrone
is the structural and functional unit of the kidney
what is a renal lobe consist of
medullary pyramide and the underlying cortical tissue and half the column of burton on either side
what is a renal lobule
a collecting duct and all the collecting tubules that connect to it
what are the parts of the nephron
the renal corpusal proximal convoluted tubule, loop of henry, distal convoluted tubule, and the collecting tubule
what are the parts of the renal corpusal
glomerulus capillaries, bowmans capsule, bowmans space, vasuclar pole uninary pole, filtration barrier.
what are the two parts of the bowmans capsule
visceral made of podocytes covers the glomerulys and the pariateial on the outside made of simple squamous epithilium.
what does bowmans space contain
Ultrafiltrate , is located between the two layers of bowmans capsule
what are the vascular and unrinary poles
the ends where the blood comes in and the unrine comes out.
describe the podocytes
primary process does not touch the vessels secounray does with the pedicles and form filtration slits that have a diaphram made of nephron
what is the filtration barrier made of.
glycoproteins, fenestrated endothelium capularies without diaphrams, basal lamina, subpodocyte space, and visceral layer of bowmans.
what do mesangial cells do
they phagocyte the old basal lamina when needed and new basal lamina will form.
what is alports syndrome
defective type 4 collagen makes you pee out blood and proteins because of a defective basal lamina barrier
what is the structure of the proximal tubule
simple cubodial epithelium has microvilli contains has brush border has loads of mitochondria so eosiniphil
what is the structure of the thin limb of the henles loop
makes a haripin loop and is lined with simple squamous epithelium.
what is the structure of the distal straight tuble or thick ascending limb of the loop of henle
low cuboidal epithelium with few microville more mitochondria then PCT
what is the structure of the distal convoluted tubule
wider and clearer luman pale granular cytoplasm and smaller cells with more cells per CS profile
what is the macula densa
modified segment of the distal tubule between the afferent and effernet arterioles has chemoreceptors.
what is the Juctaglomerular apparatus
macula densa dn the JG cells which contain renin and are modified smooth muscle cells in the unica media of the afferent arteriole
what is the collecting duct
part of the uniniferous tubule but not the nephron.
what is the distal collecting duct drain into
connectin tubule or an arched collecting tubule that drains into a cortical collectin duct, or a medullary collecting duct.
what is a papillary collecting duct of bellini
formed from several medullary collecting tubules converging lined with tall epithelium they all open into the apex of the pyramid into the minor calyx
what part of the ureter contains three layers of muscles
the lower one third