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Science chap. 18
Excretion and Elimination
| Question | Answer |
|---|---|
| anus | the opening at the lower end of the alimentary canal, through which the solid refuse of digestion is excreted |
| dermis | the dense inner layer of skin beneath the epidermis, composed of connective tissue, blood and lymph vessels, sweat glands, hair follicles, and an elaborate sensory nerve network |
| elimination | to remove or get rid of, esp. as being in some way undesirable |
| epidermis | the outer, nonvascular, nonsensitive layer of the skin, covering the true skin or corium |
| excretion | to separate and eliminate from an organic body; separate and expel from the blood or tissues, as waste or harmful matter |
| kidney unit | group of organs of the body concerned with excretion of urine, that is, water and the waste products of metabolism. In humans |
| kidneys | either of a pair of bean-shaped organs in the back part of the abdominal cavity that form and excrete urine, regulate fluid and electrolyte balance, and act as endocrine glands |
| large intestine | the broad, shorter part of the intestines, comprising the cecum, colon, and rectum, that absorbs water from and eliminates the residues of digestion |
| liver | a large, reddish-brown, glandular organ located in the upper right side of the abdominal cavity, divided by fissures into five lobes and functioning in the secretion of bile and various metabolic processes. |
| nephron | the filtering and excretory unit of the kidney, consisting of the glomerulus and tubules |
| perspiration | a salty, watery fluid secreted by the sweat glands of the skin, esp. when very warm as a result of strenuous exertion; sweat |
| pore | a minute opening or orifice, as in the skin or a leaf, for perspiration, absorption |
| rectum | the comparatively straight, terminal section of the intestine, ending in the anus |
| skin | the external covering or integument of an animal body, esp. when soft and flexible |
| sweat | to excrete (perspiration, moisture, etc.) through the pores of the skin. |
| sweat glands | one of the minute, coiled, tubular glands of the skin that secrete sweat |
| ureter | a muscular duct or tube conveying the urine from a kidney to the bladder or cloaca |
| urethra | the membranous tube that extends from the urinary bladder to the exterior and that in the male conveys semen as well as urine. |
| urinary bladder | a distensible, muscular and membranous sac, in which the urine is retained until it is discharged from the body |
| urinary system | pertaining to the organs secreting and discharging urine |
| urine | the liquid-to-semisolid waste matter excreted by the kidneys, in humans being a yellowish, slightly acid, watery fluid |
Created by:
daisy37311
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