Chapter 25 Study Guide Flashcards
Urinary system organs
kidneys (2)
ureters (2)
urinary bladder
urethra
kidney functions
filter blood plasma
separater waste from want
regulate blood volume and pressure
control blood osmolarity
secrete renin
erythropoientin
calcitriol
regulate blood pH
carry out gluconeogenesis in times of starvation
Excretion
process of isolating wastes from the body fluids and eliminating them
Nitrogenous wastes
urea
uric acid
nucleic acid
kidney location
against the posterior abdominal wall at level of T12 to L 3
RT kidney slightly lower due to space occupied by the liver above it
They are retroperitoneal
adrenal gland lies superior
kidney appearance
gland consisting of more than 1 million nephrons
medial surface has slit (hilum) where blood vessels, nerves and the ureter enter and exit
kidney bean shaped in physical appearance
blood flow through kidney
input to filtration
renal artery
segmental artery
interlobar artery
arcuate artery
interlobular arteries
afferent arteriole
glomerulus
efferent arteriole
peritubular capillaries
blood flow through kidney
filtration to output
peritubular capillaries
vasa recta
interlobular veins
arcuate vein
interlobar vein
renal vein
funtion of nephron
receives blood and filters it of waste material
structure of nephron
glomerular capsule
nephron loop
proximal convoluted tubule
distal convoluted tubule
Filtration
process of removing elements of the blood
reabsorption
removes useful solutes from the waste and returns them to the blood
secretion
the release of a chemical by a cell or gland
PCT renal tubule function
tubular reabsorption
tubular secretion
DCT renal tubule function
reabsorption of sodium
clacium
chloride
and water
secretes
potassium
hydrogen
