Urinary System Flashcards
(17 cards)
4 parts of the urinary system
kidneys
ureters
bladder
urethra
symmetrically paired organs that form the urine
bean shaped, concave on one side, convex on the other
surrounded by a Dense CT capsule
kidneys
carry urine to bladder, one for each kidney
ureters
site where urine is collected and stored until urination
bladder
carries urine from bladder to external environment
urethra
an indentation in the concave side of the kidney is called the _____, where nerves, blood vessels and lymph vessels enter and leave
hilus
expanded end of the ureter that also connects to the hills. A region where urine from the kidney collects and drains into the ureter
renal pelvis
the kidney can be divided into two parts
cortex (outer)
medulla (inner)
where urine is produced
upper portions of nephrons
upper portions of the collecting ducts in medullary rays
renal cortex
where urine is collected in the kidney
minor calyces
major calyces that empty in into the renal pelvis (expanded end of the ureter)
renal medulla
the medulla of the kidney can be subdivided into structures called the medullary, renal, or _____ _____
malpighian pyramids
portions of the medullary tissues called _____ ____ (pars radiate) project into the cortical regions
medullary rays
the medullary rays subdivide the cortex into regions called ______ _______ (pars convolute)
cortical labyrinths
functional unit of the kidney
nephron
two parts of a nephron
renal corpuscle
renal tubules
4 parts of a renal corpuscle
bowman's capsule glomerulus afferent arteriole efferent arteriole (urinary pole, vascular pole)
the kidneys receive blood from the _____ ____ which enter the kidney through the CT of the hilus
renal arteries
