Exam 4 Part 6 Flashcards
nephron
function unit of kidney where filtration and absorption occur; millions per kidney
each nephron consists of…
renal corpusule
renal tubule
renal corpusule
in cortex
has glomerulus and glomerular capsule
glomerulus
fenestrated capillary bed
some substances leave blood (filtration)
this liquid = fitrate
glomerular capsule
Bowmen’s capsule
cup-like structure, surrounds gomerulus, collects filtrate
renal tubule
series of tubules connected to glomerular capsule;
proximal convoluted tubule
rephron loop (loop of Henle); descending limb and ascending limb in medulla
distal convoluted tubule
while moving through tubules, filtrate substances…
may leave tubules (reabsorption into blood)
may remain in tubules, ultimately are excreted in urine
nephron types
cortical nephrons
juxtamedullary nephrons
cortical nephrons
short loops of Henle; most nephrons
juxtamedullary nephrons
long loops of Henle into medulla
juxta
close to
fenestrum
window
collecting ducts
nephrons drain here; liquid now called urine
these drain to renal papilla ->renal pelvis -> ureter -> bladder
ureter
retroperitoneal tube, smooth muscle
carries urineto urinary bladder
3 wall layers
ureter wall layers
transitional epithelium
muscularis: reversed -longitudinal layer to the inside; circular layer to the outside
adventitia