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LE Excretory Vocab
| Term | Definition |
|---|---|
| Filtration | removal of foreign materials from the blood stream |
| Absorption | the diffusion of materials into the blood stream |
| Secretion | separating or releasing a substance |
| Metabolic wastes | wastes produced by the metabolic processes of the body (respiration, digestion, old cell parts) |
| Urinary system | system of the body that excretes metabolic wastes in the form of urine; composed of kidneys, ureters, bladder & urethra |
| Kidney | filtering organ of the body; produces urine from metabolic wastes |
| Bladder | structure that holds urine |
| Ureter | transports urine from kidneys to bladder |
| Urethra | transports urine from bladder out of body |
| Urinary tract infection | an infection of one or more parts of the urinary system (kidney, ureter, bladder, urethra) usually caused by a bacteria |
| Epidermis | outermost layer of the skin |
| Dermis | layer of the skin under the epidermis; contains hair follicles, sweat glands, sebaceous glands, cappilaries, & nerves |
| Urea | metabolic waste formed by liver from toxins; sent to kidneys for removal; basis of urine |
| Nephrons | functional unit of the kidney |
| Diuretic | substances that causes the body to lose water and excrete it as excess urine |