Adventitial
The outermost layer of organs, blood vessels, and other structures in the body.
Albuminuria
Albumin in the urine.
Anuria
The absence of urine production.
Autonomic
Involuntary or unconscious.
Azotemia
Urea in the blood.
Cystectomy
Excision of all or part of the bladder to remove a cyst.
Cystitis
Inflammation of the lining of the bladder.
Cystocele
A condition in which weakened pelvic muscles cause the bladder to drop from its normal position.
Cystography
Radiographic imaging of the bladder.
Cystoscope
A thin, tube-like instrument used to look inside the bladder and urethra.
Cystoscopy
Examination of the bladder and urethra using a cystoscope, inserted into the urethra.
Cystostomy
Creation of an artificial opening into the bladder.
Cystotomy
Incision into the bladder.
Deamination
The removal of an amino group from a molecule.
Detrusor
A muscle which forms a layer of the wall of the bladder.
Diuresis
Excess production of urine.
Dysuria
Painful urination.
Enuresis
Involuntary urination.
Excretion
To get rid of waste material from the blood, tissues, or organs by a normal discharge (such as sweat, urine, or stool).
Glomerulonephritis
A condition in which the tissues in the kidney become inflamed and have problems filtering waste from the blood.
Glycosuria
Presence of glucose in the urine.
Hematuria
Blood in the urine.
Homeostasis
The state of steady internal conditions maintained by living things.
Hydronephrosis
Abnormal enlargement of a kidney, which may be caused by blockage of the ureter (such as by a kidney stone) or chronic kidney disease that prevents urine from draining into the bladder.
Hydrostatic
Relating to the equilibrium of liquids and the pressure exerted by liquid at rest.
Hypothalamus
A region of the forebrain below the thalamus; has function in both the autonomic and endocrine systems and regulates homeostasis.
Incontinence
Loss of ability to control micturition (urination).
Lethargy
A condition marked by drowsiness and an unusual lack of energy and mental alertness.
Micturition
Also called urination or voiding.
Lithotripsy
The destruction of a calculus (stone) of the kidney, ureter, bladder, or gallbladder by physical forces.
Mitochondria
A membranous, bean-shaped organelle that is the “energy transformer” of the cell.
Nephrectomy
Excision of all or part of the kidney.
Nephritis
A condition in which the tissues in the kidney become inflamed and have problems filtering waste from the blood.
Nephrolithiasis
Formation of stone(s) in the kidney.
Nephrolithotomy
Incision into the kidney to remove stone(s).
Nephrologist
A doctor who has special training in diagnosing and treating kidney disease.
Nephrology
A subspecialty of internal medicine concerned with the anatomy, physiology, and pathology of the kidney.
Nephrostomy
Surgery to make an opening from the outside of the body to the renal pelvis.
Nocturia
Frequent urination at night that interrupts sleep.
Oliguria
Below normal urine production of 400–500 mL/day.
Osmosis
A process by which molecules of a solvent tend to pass through a membrane from a less concentrated solution into a more concentrated one.
pH
A measure of how acidic or alkaline a substance is, as determined by the number of free hydrogen ions in the substance.
Polyuria
Excessive urine production.
Prostaglandins
Signaling molecules derived from unsaturated fatty acids with hormone-like effects.
Pseudostratified
Tissue with a single layer of irregularly shaped cells that give the appearance of more than one layer.
Pyelitis
Inflammation of the renal pelvis and kidney calices.
Pyelonephritis
Inflammation of the nephrons, renal pelvis, and kidney calices.
Pyuria
The presence of white blood cells in the urine.
Solutes
The minor component in a solution.
Stricture
Abnormal narrowing.
Ureterocele
A cystic dilatation of the end of a ureter.
Ureterolithiasis
Formation of stone(s) in the ureter.
Ureteroscopy
Examination of the inside of the kidney and ureter, using a ureteroscope.
Ureterostomy
Creation of an artificial opening into the ureter.
Urinal
Receptacle used for the collection of urine.
Urinary
Pertaining to urine or the organs of the body that produce and get rid of urine.
Urologist
A doctor who has special training in diagnosing and treating diseases of the urinary organs in females and the urinary and reproductive organs in males.
Urology
A surgical specialty concerned with the study, diagnosis, and treatment of diseases of the urinary tract in both sexes, and the genital tract in the male.
Voiding
Also known as urination or micturition.