Urinary System Test Flashcards
5 ways kidneys maintain homeostasis
- Regulation of water, blood, and interstitial fluid volumes
- Excretion of wastes, solutes, and toxins
- Regulation of pH in body
- Regulation of normal blood pressure
- Synthesis of calcitrol and erythropoietin
5 factors that INCREASE metabolic rate
- Exercise
- Food intake
- Hormones
- Body temperature
- Nervous stimulation
4 factors that DECREASE metabolic rate
- Sleep
- Malnutrition
- Hypothermia
- Age
List & define 4 primary routes of heat loss
- Radiation - no physical contact
- Conduction - direct physical contact
- Convection - body to air
- Evaporation - liquid to a gas
Filtration
Movement of blood plasma across the filtration membrane of the renal corpuscle
Reabsorption
Return of needed substances back into the bloodstream
Secretion
Toxins in the blood not removed by filtration are removed by tubular secretion
Excretion
Removal of waste materials from the body
Glycosuria
Sugar in urine
Hematuria
Blood in urine
Pyuria
Pus in urine
Dysuria
Painful urination
Polyuria
Larger amounts of urine
Oliguria
Low amounts of urine
Anuria
Absence of urine
Casts
Substances of mucus that harden and form molds inside tubules
6 components of urine
- Nitrogen wastes
- Electrolytes
- Toxins
- Pigments
- Hormones
- Various abnormal things
Antidiuretic
Substance that inhibits urine formation
Diuretic
Chemical that inhibits sodium reabsorption by kidneys resulting in increased urine volume
Trigone
Triangular region on inner wall of bladder bordered by ureters and exit of urethra
Micturition
Urination
Electrolyte
Chemical that separates ions and conducts an electric current in a water solution
Podocyte
cell that forms the visceral layer of a bowman’s capsule
Homeostasis
State of well being
ADH
Hormone that promotes conservation of water
Urine
Fluid produced by kidneys
Retroperitoneal
Pertaining to a structure lying external to the parietal peritoneum
Adrenal glands
Glands superior to kidney
Renal
Pertaining to the kidneys
Nephrons
Structures within kidney where filtration, reabsorption, and secretion occur
Erythropoietin
Stimulates production of RBCs
Renin
Stimulates secretion of aldosterone
Cystitis
Inflammation of bladder
Calculi
Kidney stones, increased salts in urine
Congenital polycystic kidney disease
Kidney failure; abnormal development of renal tubules and collecting ducts causing cysts; genetic
Diuresis
Increased production of urine
Enuresis
Uncontrolled urination
Glomerulonephritis
Inflammation of glomeruli; viral or bacterial infection
Incontinence
Uncontrolled urination
Pyelonephritis
Inflammation of renal pelus usually caused by bacteria ascending in the tract
Retention/suppression
Inability to urinate
Uremia
Toxic levels of urea in blood; indication of kidney failure
Urethritis
Inflammation of urethra
Urinary tract tumors
Usually carcinoma arising from epithelium of low grade malignancy
Distention
When things are full
Detrusor
Muscle that controls bladder relaxation and contraction
Meatus
Opening where you pee
Filtrate
Fluid and dissolved substances
Nitrogenous waste
Metabolic waste containing nitrogen