kidneys and ureter Flashcards
function of kidneys
excretion of urea uric acid creatine
disposes of waste and excess ions
regulates blood volume
affects blood pressure and red blood cell formation
urea is broken down from
amino acids
uric acid is broken down from
nuclei acid turnover
creatine is broken down from
creatine phosphate
glycoprotein secreted by kidneys that help in the formation of rbcs
erythropoietin
location of kidneys
lie against the posterior abdominal wall above the ilium and are protected by the lower two ribs
renal hilus
is the location where blood vessels and nerves enter the kidney
superior to the kidneys are the
adrenal glands
capsules of the kidneys
kidneys are surrounded by
the renal capsule (dense connective tissue)
the adipose capsule (contains perirenal fat)
the most external membrane is renal fascia
features of the kidney
- renal cortex : superior part light in color
- renal medulla : darker middle
- renal medulla is divide into pyramids and columns
- major and minor calices
function of renal cortex
provides a space for arterioles and venules from the renal artery and vein as well as the glomerular capillaries to perfuse the nephrons of the kidney erythropotein is produced in the renal cortex
function of renal medulla
regulate concentration of the urine
function of renal pyramids
pyramids consist mainly of tubules that transport urine from the cortical, or outer, part of the kidney, where urine is produced, to the calyces,
function of renal columns
medullary extension of the renal cortex in between the renal pyramids allows the cortex to be better anchored
blood supply and venous drainage of the kidneys
main blood supply of the kidneys is the renal artery and veins
renal artery - interlobular - arcuate - interlobular - afferent and efferent arterioles around the nephrons