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Chapter 7 Chabner

Vocabulary

TermDefinition
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 rcortexemoving fluids
cortex Outer region of an organ
creatinine Nitrogenous waste excreted in urine
cystitis inflammation of the urinary bladder
electrolyte Chemical element that carries an electrical charge when dissolved in water.
etythropoietin (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
hydronephrosis Condition of excess fluid (water) in the kidney
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
potassum (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 Mircroscopic 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)
trigone Triangular area in the urinary bladder
urea Major nitrogenous waste excreted in urine
ureter One of two tubes leading from the kidneys to the urinary bladder
urethra Tube leading from the urinary bladder to the outside of the body
uric acid Nitrogenous waste product excreted in the urine
urinary bladder Hollow, muscular sac that holds and stores urine
urination (voiding) Process of expelling urine; also called micturition
Created by: JCA
 

 



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