Senses And The Nervous System Flashcards by Cormac Burke | Brainscape

Q

A stimulus

A

Something that causes a response

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Q

Sensetivity

A

Detecting and responding to a stimulus

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Q

Lens

A

Focuses the light onto retina

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Q

Iris

A

Controls the amount of light entering the eye

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Q

Cornea

A

allows light through

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Q

Pupil

A

The hole that allows light through

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Q

Nervous System

A

Brain, spinal cord, all the nerves

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Q

Sensory Nerve

A

Sends a message to the brain from the sense organ

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Q

Cilliary muscle

A

Changes the shape of the lens for focusing

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Q

Retina

A

Contains the light sensitive cells

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Q

Optic nerve

A

Carries messages to the brain

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Q

Motor nerve

A

Sends a message from the brain to the muscle

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Q

Messages

A

Are sent along nerves as pulses of electricity

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Q

The eye contains

A

The cornea, irirs, lens, retina, optic nerve and ciliary muscle

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