Biology- The Sensory System Flashcards

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1
Q

Sensory neuron

A

Carry messages from the sense organs to the brain

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2
Q

Motor neuron

A

Carrys messages from the brain to the sense organs

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3
Q

Iris

A

Coloured part, controls the amount of light that enters the eye

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4
Q

The cornea

A

Transparent lair that protects the eye and allows light into the eye

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5
Q

The pupil

A

A hole that gets bigger and smaller

Allows light into the eye

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6
Q

Lens

A

Focuses light on the retina

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7
Q

Ciliary muscle

A

Pulls and pushes and changes the shape of the lens to focus on objects

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8
Q

Retina

A

A light sensitive layer of cells at the back of the eye

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9
Q

Optic nerve

A

Carries messages to the brain

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