Senses and the Nervous system Flashcards
1
Q
Stimulus
A
Is something that causes a response
2
Q
Sensitivity
A
Detecting and responding to a stimulus
3
Q
Nervous system
A
The brain, spinal cord, all the nerves
4
Q
Sensory nerve
A
Sends a message to the brain from the sense organ
5
Q
Motor nerve
A
Sends a message from the brain to a muscle
6
Q
Messages
A
Are sent along nerves as pulses of electricity
7
Q
The eye contains
A
The cornea, iris, lens, pupil, retina, optic nerve and ciliary muscle
