Nervouse System

Question 1

Name 4 parts of the eye

Answer 1

Cornea,lens,iris,fovea

Question 2

One function of the retina

Answer 2

Absorbs light and sends optic waves

Question 3

One advantage of eye positioning in sheep

Answer 3

On side of head to see further in case of danger e.g predetors

Question 4

Iris function

Answer 4

Control light into eye /control pupil size

Question 5

Function of Lens

Answer 5

Focuses light

Question 6

Function of retina

Answer 6

absorbs light and detects colour

Question 7

Function of cornea

Answer 7

Protection

Question 8

Name two parts of central nervous system

Answer 8

Brain and spinal cord

Question 9

Two functions of the parasympathetic nervous system

Answer 9

Slow heart beat to calm animal and contracts bladder for urination

Question 10

Two symptoms of listeriosis in ruminants

Answer 10

Loss of appetite and salvation

Question 11

Position of owls eye

Answer 11

Front of face helps with better focus

Question 12

State the photoreceptors that animals use to help see in the dark

Answer 12

Rods and cones

Question 13

Name the hormone released when an animal is stressed

Answer 13

Adrenalin

Question 14

How sense organs cause response to stimuli

Answer 14

Receptors detect stimuli,spinal cord processes the message and message sent to receptors

Question 15

Two functions of sympathetic nervous system

Answer 15

Dilates pupils and relaxes bladder

Question 16

State two types of neurons

Answer 16

Motor neutrons and sensory neurons