urinary system Flashcards
(29 cards)
collecting duct system is under the control of
ADH
capillaries lie adjacent to all segment of the tubule
peritubular capillaries
contain the loops of henle and collecting ducts
medulla and medulla rays
produces urine, which contains excess water, electrolytes and waste products of the body
kidney
the initial segment of distal convoluted tubule lies right next to the glomerulus and forms the (?)
juxtaglomerular apparatus
kidney is composed of an (?) and an (?)
- outer cortex
- inner medulla
first segment of the renal tubule
proximal convoluted tubule
comprised of the kidney, ureter, urinary bladder, and urethra
urinary system
metabolic functions of kidney
- MAINTENANCE of water and electrolyte
- REGULATION of acid-base balance
- EXCRETION of metabolic waste products
- PRODUCTION of renin
- CONVERSION of vitamin D into active form
structural and functional unit of the kidney
nephron
contains renal corpuscles, procimal and distal convoluted tubule
cortex
two structure of renal corpuscle
- glomerulus
- bowman’s capsule
muscular tube, composed of an inner longitudinal layer and an outer circular layer
ureter
responsible for the filtration of the plasma
renal corpuscle
the outer layer, composed of simple squamous epithelial cells
parietal layer
2 layers of bowman’s capsule
- visceral layer
- parietal layer
bladder is emptied via (?)
urethra
site of entry and exit for renal artery, renal vein, and ureter
hilum
terminal portion of the distal tube empties through (?)
collecting tubules
components of a single nephron
- renal corpuscle
- proximal convoluted tubule (PCT)
- loop of henle
- distal convoluted tubule (DCT)
forms a hair- pin structure that dips down into the medulla
loop of henle
the lumen of the ureter is covered by (?)
transitional epithelium (urothelium)
visceral layer is in contact with the glomerulus, composed of specialized epithelial cells known as (?)
podocytes
the loops of henle run in parallel to capillary loops also known as the (?)
vasa recta
