Chapter 7. Urinary System - Medical Terms Flashcards
acetone
ketone body produced in abnormal amounts in uncontrolled diabetes mellitus, when there is excessive fat breakdown in cells
albuminuria
protein in the urine
antidiuretic hormone
pituitary gland hormone that normally stimulates the kidney to decrease production of urine, preventing excessive loss of water; also called vasopressin
anuria
suppression of urine formation by the kidney
arteriole
small artery
azotemia
excess of nitrogenous waste products in the blood; uremia
bacteriuria
bacteria in the urine
caliceal
pertaining to the calyx (a cup-shaped collecting chamber in the central portion of the kidney)
caliectasis
dilation or widening of a calyx; this occurs when urine is backed up in the kidney as in hydronephrosis
calyx; calyces
cup-shaped collecting region in the renal pelvis (central section of the kidney)
catheter
tube for injecting or removing fluids
cortex
outer region of an organ; renal cortex is the outer region of the kidney
cortical
pertaining to the cortex (outer region of an organ)
creatinine
nitrogen-containing waste product of muscle metabolism; excreted by the kidney in urine
creatinine clearance test
measures the rate at which creatinine is cleared from the blood by the kidney
cystectomy
excision (removal) of the urinary bladder
cystitis
inflammation of the urinary bladder
cytoscopy
visual (endoscopic) examination of the urinary bladder
cystostomy
new opening of the urinary bladder to the outside of the body
diabetes insipidus
abnormal condition of inadequate secretion of antidiuretic hormone (ADH) from the pituitary gland; patients experience polyruria (excessive urination) and polydipsia (excessive thirst)
diabetes mellitus
abnormal condition of no insulin or inadequate insulin secretion from the pancreas; this leads to hyperglycemia (high blood sugar) and glycosuria (sugar in the urine)
diuresis
increased excretion of urine by the kidneys; a diuretic is an agent that increases diuresis, such as tea, coffee, or water
dysuria
painful urination
edema
abnormal accumulation of fluid in tissue spaces
electrolyte
chemical element that carries an electrical charge when dissolved in water; examples are sodium (Na+) and potassium (K+) and chloride (Cl-)
enuresis
betwetting; literally, “in urine”
erythropoietin
hormone secreted by the kidney to stimulate red blood cell production by bone marrow
essential hypertension
high blood pressure due to no apparent cause
filtration
process by which some substances, but not all, pass through a filter or other type of material
glomerular capsule
collects the material that is filtered from the blood through the walls of the glomerulus; also known as Bowman capsule
glomerulonephritis
inflammation of glomeruli in the kidney
glomerulus; glomeruli
tiny ball of capillaries (microscopic blood vessels) in the cortex of the kidney; as blood flows through each glomerulus, waste materials and other substances are filtered from the bloodstream
glycosuria
sugar in the urine