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18 Cards in this Set
- Front
- Back
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Atom |
Tiny building blocks of matter |
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Cells |
Smallest unit of all living things |
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Tissues |
Groups of similar cells with a common function. |
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Organ |
Structure composed of 2 or more tissue types that performs a specific function for the body |
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Organ system |
Group of organs that work together to accomplish a common purpose |
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Organism |
11 organ systems make up the human being; the highest level of structural organization. |
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Integumentary system |
External covering of the body; skin, includes hair and nails; waterproofs, cushions, and protects deeper tissues. |
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Skeletal system |
Consists of bones, cartilage, and joints. Supports the body and provides framework. |
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Muscular system |
Allows manipulation of the environment, locomotion, and facial expression; maintain posture; produces heat. |
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Nervous system |
Fast-acting control system; responds to internal and external changes by activating appropriate muscles and glabds. |
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Endocrine system |
Glands secrete hormones that regulate processes such as growth, reproduction, and nutrient use by body cells. |
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Cardiovascular system |
Blood vessels transport blood, which carries oxygen nutrients, hormones, carbon dioxide and wastes; the heart pumps blood |
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Lymphatic system |
Picks up fluid leaked from the blood vessels and reruns it tik the bkood; disposes of debris in the lymphatic stream: houses white blood cells aides in immunity |
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Respiratory system |
Keeps blood constantly supplied with oxygen and removes carbon dioxide; the gaseous exchanges occur through the walls of the air sacs in the lungs. |
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digestive system |
Breaks food down into absorbable nutrients that enter the blood for distribution to body cells; indigestabke foodstuff is eliminated |
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Urinary system |
eliminates nitrogen containing wastes from the body; regulates water, electrolyte, avid-base balance of the blood. |
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Reproductive system |
Overall function of the reproductive system is production of offspring. |
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Maintaining boundaries |
Every living organism must maintain boundaries so the insides can stay inside |
