Bob Jones Life Science - Chapter 21
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| lung | An organ that exchanges gases between the atmosphere and the blood
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| mucus | A slimy, protective substance on the exterior of many fish and some amphibians; a thick, sticky substance secreted by the mucous membranes in the human body
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| pharynx | A musculatory tube that forms a section of some animals' digestive systems; the passageway between the mouth and the nose, esophagus, and larynx; also called the throat
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| esophagus | In earthworms, a tubular passageway that carries food from the pharynx to the crop; in humans and vertebrate animals, a part of the digestive tract that connects the pharynx and stomach
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| larynx | The short passageway that leads from the pharynx to the trachea, the sound-producing organ
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| epiglottis | A think, flexible flap of tissue in front of the larynx that folds over and blocks the glottis during swallowing
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| uvula | A structure at the back of the throat that prevents food from entering the nasal cavity when swallowing
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| glottis | The space between the vocal folds that is a passageway for air
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| trachea | In insects, one of the tiny tubes that branch throughout the body, carrying air to the tissues; in humans and vertebrate animals, the tube that carries air between the pharynx and the lungs
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| bronchi | The two branches of the trachea; carry air to and from the lungs
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| alveoli | The microscopic sacs in the lungs where gases are exchanged between the air and the bloodstream
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| diaphragm | The part of a microscope that regulates the amount of light that passes through a specimen; the muscle that separates the thorax from the abdomen in mammals and humans and that aids in breathing
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| digestion | The breakdown of food into smaller substances that the body's cells can use
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| assimilation | The growth process by which living cells convert nutrients from food into cellular structures
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| alimentary canal | The group of digestive organs forming the digestive tract that runs from mouth to anus
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| peristalsis | Muscular contractions that move food along the alimentary canal
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| salivary gland | A digestive gland that secretes saliva into the mouth
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| chyme | The semiliquid mixture of digestive juices and partly digested food in the stomach and small intestine
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| small intestine | The long, tubular organ in which most of the digestion and absorption of food occurs
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| villi | Microscopic, fingerlike structures that line the wall of the small intestine and aid in the absorption of food molecules
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| large intestine | The part of the digestive tract that extends from the end of the small intestine to the anus and absorbs water and minerals
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| liver | The organ that produces bile, helps regulate substances in the blood, and stores vitamins and minerals
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| bile | A substance secreted by the liver that helps separate lipids into small droplets to aid digestion
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| pancreas | An organ that secretes enzymes into the small intestine to help perform digestion and also secretes the hormone insulin into the bloodstream
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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