Chapter 17/18 Vocabulary

Acidosis

Increase in the acidity of body fluids below pH 7.35

Alkalosis

Increase in the alkalinity of body fluids above pH 7.45

Efferent arteriole

The vessel that conducts blood away from the glomerulus of a kidney nephron

Electrolyte

A substance that ionizes in water solution

Electrolyte balance

Condition when the quantities of electrolytes entering the body equal those leaving it

Extracellular fluid compartment

Fluid outside cells; includes plasma and interstitial fluid

Glomerulus

A capillary tuft within the glomerular capsule of a nephron

Intracellular fluid compartment

Fluid within cells

Kidney

Either of a pair of organs that are located in the rear of the abdominal cavity in vertebrates. The kidneys regulate fluid balance in the body and filter out wastes from the blood in the form of urine. The functional unit of the kidney is the nephron.

Micturition

Urination

Nephron

The functional unit of the kidney, consisting of renal corpuscle and a renal tubule

Renal cortex

The outer portion of a kindey

Renal medulla

The inner portion of a kidney

Renal tubule

Portion of a nephron that extends from the renal corpuscle to the collecting duct

Urea

A nonprotein nitrogenous substance resulting from protein metabolism

Ureter

A mucular tube that carries urine from the kidney to the urinary bladder

Urethra

Tube leading from the urinary bladder to the outside of the body

Urine

Wastes and excess water removed from the blood and excreted by the kidneys into the ureters, to the urinary bladder, and out of the body through the urethra

Water balance

Equivalence of the volume of water entering the body with the volume leaving it

Water of metabolism

Water produced as a by-product of metabolism

Calyc-

Small cup

Cort-

Covering

Extra-

Outside

Glom-

Little ball

Intra-

Inside

Mict-

To pass urine

Nephr-

Kidney

Neutr-

Neither one nor the other