Excretion and Elimination
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| anus | the opening at the lower end of the alimentary canal, through which the solid refuse of digestion is excreted
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| 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
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| elimination | to remove or get rid of, esp. as being in some way undesirable
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| epidermis | the outer, nonvascular, nonsensitive layer of the skin, covering the true skin or corium
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| excretion | to separate and eliminate from an organic body; separate and expel from the blood or tissues, as waste or harmful matter
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| kidney unit | group of organs of the body concerned with excretion of urine, that is, water and the waste products of metabolism. In humans
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| 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
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| 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
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| 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.
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| nephron | the filtering and excretory unit of the kidney, consisting of the glomerulus and tubules
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| perspiration | a salty, watery fluid secreted by the sweat glands of the skin, esp. when very warm as a result of strenuous exertion; sweat
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| pore | a minute opening or orifice, as in the skin or a leaf, for perspiration, absorption
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| rectum | the comparatively straight, terminal section of the intestine, ending in the anus
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| skin | the external covering or integument of an animal body, esp. when soft and flexible
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| sweat | to excrete (perspiration, moisture, etc.) through the pores of the skin.
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| sweat glands | one of the minute, coiled, tubular glands of the skin that secrete sweat
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| ureter | a muscular duct or tube conveying the urine from a kidney to the bladder or cloaca
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| urethra | the membranous tube that extends from the urinary bladder to the exterior and that in the male conveys semen as well as urine.
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| urinary bladder | a distensible, muscular and membranous sac, in which the urine is retained until it is discharged from the body
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| urinary system | pertaining to the organs secreting and discharging urine
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| urine | the liquid-to-semisolid waste matter excreted by the kidneys, in humans being a yellowish, slightly acid, watery fluid
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