Senses And The Nervous System Flashcards
0
Q
Stimulus
A
Something that causes a response eg when you hear something you would look
1
Q
Sensitivity
A
Detecting and responding to a stimulus
2
Q
Lens
A
Focuses the light onto the retina
3
Q
Iris
A
Control the amount of light entering the eye
4
Q
Cornea
A
Allows light through
5
Q
Pupil
A
The hole that allows light through
6
Q
Ciliary muscle
A
Changes the shape of the lens for focusing
7
Q
Retina
A
Contains the light sensitive cells
8
Q
Optic nerve
A
Carries messages to the brain
9
Q
Nervous system
A
Brain spinal cord all the nerves
10
Q
Sensory nerve
A
Sends a message to the brain from the sense organ
11
Q
Motor nerve
A
Sends a message from the brain to a muscle
12
Q
Messages
A
Are sent along nerves as pulse of electricity
13
Q
The eye contains
A
The cornea, iris, lens, pupil, retina, optic nerve and ciliary muscles.
