The Sensory System Flashcards
What is a sensory neuron
It carries messages from the sense organs to the brain
What is a motor neuron
It carries messages from the brain to the sense organ
What does the iris do
It controls the amount of light is let into the eye
What is the iris
It is the coloured part of the eye
What is the pupil
A hole that gets bigger and smaller. Allows light into the eye
What is the cornea
Transparent lair that protects The eye and allows the lights into the eye
What are the lens
The lens focuses the lights on to the retina
What does the ciliary muscle do
It pulls and pushes and changes the shape of the lens to focus on objects
What is the retina
It is a light-sensitive the layer of cells at the back of the eye
What is the optic nerve
It’s carries messages to the brain
