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20
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Give one example of an involuntary action controlled by the autonomic nervous system!
Heartbeat / breathing / digestion (any one correct)
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monster
Reset all scores!
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magnet
Take 10 points!
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gift
Win 15 points!
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baam
Lose 20 points!
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20
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What happens to the lens when focusing on a near object?
It becomes thicker and more convex.
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20
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Which muscle of the iris contracts to dilate the pupil?
Radial muscle.
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20
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Which structure changes the shape of the lens during accommodation?
Ciliary muscles.
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20
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Which part of the brain controls balance and coordination of movement?
Cerebellum
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20
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Which type of neuron carries impulses from sense organs to the central nervous system?
Sensory neuron
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20
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Which type of nerves carry signals from the central nervous system to muscles?
Motor nerves
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Which part of a neuron receives signals from other neurons?
Dendrites
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What happens to the ciliary muscles when focusing on a distant object?
They relax.
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20
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On which part of the eye must light rays be focused to form a clear image?
Retina
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eraser
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rocket
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gift
Win 20 points!
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lifesaver
Give 25 points!
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thief
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25
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seesaw
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fairy
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25
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banana
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20
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What is the gap between two neurons called?
Synapse
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heart
Other team wins 15 points!
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star
Double points!
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rocket
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baam
Lose 15 points!
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20
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What happens to the pupil in bright light?
The pupil constricts.
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