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38 Cards in this Set
- Front
- Back
- 3rd side (hint)
nutrient
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substance from food that is needed for health & growth
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food and growth
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nucleus
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dark region near the center of a cell that directs the cell's actions
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center of cell
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ligament
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a band of strong, flexible tissue that connects bones at a joint
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tendon
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a tough, strong band of fiberlike tissue that joins a muscle to a bone
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marrow
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soft tissue that fills the spaces in most bones
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cartilage
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tough, elastic tissue that makes up part of the skeleton
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voluntary muscle
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muscle that a person can control
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involuntary muscles
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muscle that works without a person's conscious control
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hormone
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chemical released into the bloodstream by the glands
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pituitary glands
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- gland near brain
- controls growth hormone - controls other glands |
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growth spurt
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period of rapid growth between 9 & 15
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cornea
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clear tissue that protects front of the eye & starts bending light
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iris
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- colored part of the eye
- controls amount if light entering the eye |
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retina
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- layer of tissue at the back of the eyeball
-contains nerve cells, send messages to the brain |
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cochlea
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- snail shaped part of inner ear
- nerve cells send sound signals to brain |
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cerebrum
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- part of the brain
- controls thinking & voluntary muscle movement |
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cerebellum
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keeps muscles working together properly
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spinal cord
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- bundle of nerve cells
- extends from brain to backbone - nerves branch off from spinal cord to rest of body |
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esophagus
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tube that connects mouth with stomach
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villi
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- tiny, hairlike parts lining the intestines
- helps nutrients pass from food into bloodstream |
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mucus
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sticky liquid covers certain body parts
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trachea
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- windpipe
- goes from throat to lungs |
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diaphragm
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wall of muscle below the ribs
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atrium
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- part of the heart
- receives blood from blood vessels |
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ventricle
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- part of the heart
- pumps blood to other parts of the body |
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capillary
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- tiny blood vessel
- connects end of artery to beginning of vein |
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platelet
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- blood cell particle
- contains chemicals that thicken blood |
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plasma
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liquid part of the blood
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decibel
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unit used for measuring the volume of sound
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farsighted
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ability to see distant objects more clearly than close up
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nearsighted
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ability to see close up items clearer than distant items
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astigmatism
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- eye problem
- cornea or lense is uneven in shape - causes blurred vision |
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enamel
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- hard, white surface
- covers outside of tooth |
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cementum
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- bony tissue
- covers & protects root of tooth |
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dentin
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bone like tissue under enamel & cementum
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has the word centrum in it
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pulp
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- soft tissue @ center of tooth
- contains nerves & blood vessels |
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plaque
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- sticky, colorless layer of bacteria
- always forming on your teeth |
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calculus
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- hardened plaque
- bulls up between teeth & gums - causes gum problems & tooth loss |
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