ch. 7 vocab 28-49 Flashcards
(31 cards)
arteriole
Small artery
calyx or calix
Cuplike collecting region of
the renal pelvis; the term
comes from the Greek,
kalux, meaning a cup or
case surrounding a flower
bud
catheter
Tube for injecting or
removing fluids
cortex
Outer region of an organ
creatinine
Nitrogenous waste
excreted in urine
electrolyte
Chemical element that carries
an electrical charge when
dissolved in water.
erythropoietin
(EPO)
Hormone secreted by the
kidney to stimulate
production of red blood
cells by bone marrow;
-poietin means a
substance that forms.
filtration
Process whereby some substances pass through a filter
glomerular capsule
Enclosing structure surrounding each
glomerulus; also called Bowman capsule
glomerulus
Tiny ball of capillaries in the kidney
hilum
Depression in the part of an organ where blood vessels and nerves enter and leave; comes from the Latin meaning a small thing
kidney
One of two bean-shaped organs that
filter nitrogenous waste from the
bloodstream to form urine
meatus
Opening or canal
medulla
Inner region of an organ; the term
comes from the Latin, medulla,
meaning marrow
nephron
The functional unit of the kidney where filtration, reabsorption, and secretion take place
nitrogenous waste
Substance containing nitrogen and excreted in urine; examples are urea, uric acid, and creatinine
potassium (K+)
An electrolyte regulated by
the kidney
reabsorption
Renal tubules return
materials necessary to the
body back into the
bloodstream
renal artery
Blood vessel that carries
blood to the kidney
renal pelvis
Central collection region in
the kidney
renal tubules
Microscopic tubes in the
kidney where urine is
formed after filtration
renal vein
Blood vessel that carries
blood away from the
kidney
renin
Hormone secreted by the kidney
that raises blood pressure
sodium (Na+)
An electrolyte regulated in the
blood and urine by the kidneys;
a common form of sodium is
sodium chloride (salt)
