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Fourth Grade (Grade 4) Nervous and Endocrine Systems Questions

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Grade 4 Nervous and Endocrine Systems
Use the key below to color the parts of the human eye.
Eye Diagram

A) Muscles - orange

B) Cornea - white

C) Pupil - black

D) Lens - gray

E) Iris - green

F) Retina - brown

G) Optic nerve - red
Grade 4 Nervous and Endocrine Systems
The lining of the cells in the back of the eye is the            retina          .
Grade 4 Nervous and Endocrine Systems
The               optic nerve               picks up the messages from the          retina          and sends them to the brain.
Grade 4 Nervous and Endocrine Systems
The           iris          is the muscular structure that opens and closes the pupil.
Grade 4 Nervous and Endocrine Systems
Which body part tells a batter whether or not to swing at a ball?
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