Mrs Hayes- Biology 1

Question 1

What are the two parts of the nervous system?

Answer 1

The central nervous system

Nerves

Question 2

The nervous system-

Answer 2

Sensory receplors- sensory nerve- Brain and spinal cord- motor neurone- Effectors

Question 3

Nervous impulses travel from the ……… ……. to the central nervous system along a ………. neurone.

Answer 3

Sensory receplors

Sensory

Question 4

Impulses travel from the CNS to an effector along a …… neurone. The effector may be a …… or …..

Answer 4

Motor
Muscle
Gland

Question 5

Eye simulation-

Answer 5

Light

Question 6

Ear stimulation-

Answer 6

Sound vibrations, postion of head

Question 7

Mouth stimulation-

Answer 7

Checimals

Question 8

Skin stimulation-

Answer 8

Temperture, pain and texture

Question 9

Noes stimulation-

Answer 9

Checimals

Question 10

To be able to label a eye

Answer 10

…..

Question 11

Retina-

Answer 11

Contains light senstive cells

Question 12

Lens-

Answer 12

Focuses light onto the retina

Question 13

Sclera-

Answer 13

Protective outer layer of the eye

Question 14

Cornea-

Answer 14

Refracts the light rays

Question 15

Optic nerve-

Answer 15

Carries impilses to the brain

Question 16

Fovea-

Answer 16

Contains a high concertaration of light through sensitive cells

Question 17

Pupil-

Answer 17

Hole through which light enters the light

Question 18

Iris-

Answer 18

Contains muscle which changes the size of the pupil

Question 19

Draw a diagram of how the light forms an image…

Answer 19

…

Question 20

Bright light is…

Answer 20

Small pupil

Question 21

Dim lights-

Answer 21

Large pupil

Question 22

Bright light, radical and circular…

Answer 22

Radical relax

Circular contract

Question 23

Dim light- radical, circular

Answer 23

Radical contract

Circular relax

Question 24

Blight spot is…

Answer 24

Where the optic nerve leaves the eye. No light senstive cells there. If light is there you wont see it.

Question 25

Impulses are carried from the retina to the .......

Answer 25

Brain