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Nervous and Endocrine System

Name: ______________________________

Date: __________________  Period: _______

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