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Nervous and Endocrine System

Name: ______________________________

Date: __________________  Period: _______

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Across
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Type of cells that protect and support neurons
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Part of the brain stem
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Protective bones surrounding the spinal cord
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Focuses light on the retina
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Gland that produces hormones essential in the control of sleep
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Extension of the neuron carrying impulses away from the cell body
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Short, branched extension of the cell body
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Having no control over it
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Cell that moves messages in the form of fast-moving electrical energy
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Largest part of the brain
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Cells that control movement are damaged
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Allows the brain to communicate with the rest of the body
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Gland controling the body's fight or flight response
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Central command organ
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Fluid filled organ of the inner ear
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Condition causes an imbalance of the blood sugar
Down
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Chemical messengers
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Group of cells that make special chemicals for the body
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Opening where light passes into the eye
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Processes information from your body
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System controls body functions using hormones
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Cells that react to chemicals in the air
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Gland that secretes hormones affecting other glands, stimulates growth
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Gland controls calcium levels in the blood
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Thin membrane separating the outer from the middle ear
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Clear membrane covering the front of the eye
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Gland regulating blood sugar
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Layer of light-sensitive photoreceptor cells
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Gland controls your metabolism
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System made of the structures that control the actions and reactions of the body