Chapter 9-The Sensory System Flashcards
1
Q
How are Neurons transported
A
Carried as electrical impulses down the spinal cord
2
Q
Two types of Neurons and difference
A
Sensory Neurons- from sensory organ to brain
Motor Neurons- from brain to moving body part
3
Q
Cornea
A
Protects and allows light in
4
Q
Pupil
A
Hole, allows light in
Doesn’t let light out-> black
5
Q
Iris
A
Colour around pupil
6
Q
Lens
A
To focus light on the retina
7
Q
Retina
A
Light sensitive layer
8
Q
Optic nerve
A
Carries message form th eye to the brain
9
Q
Ciliary muscle
A
Changes lens’ shape
10
Q
Nerve cells are called:
A
Neurons
