Senses And The Nervous System

Question 0

Stimulus

Answer 0

A stimulus is something that causes a response e.g. When you hear people walking by you look

Question 1

Sensitivity

Answer 1

Detecting and responding to a stimulus

Question 2

Lens

Answer 2

Focuses the light onto the retina

Question 3

Iris

Answer 3

Controls the amount of light entering the eye

Question 4

Cornea

Answer 4

Allows light through

Question 5

Pupil

Answer 5

The hole that allows light through

Question 6

Ciliary muscle

Answer 6

Changes the shape of the lens for focusing

Question 7

Retina

Answer 7

Contains the light sensitive cells

Question 8

Optic nerve

Answer 8

Carries messages to the brain

Question 9

Nervous system

Answer 9

Brain, spinal cord, all the nerves

Question 10

Sensory nerve

Answer 10

Sends a message to the brain from the sense organ

Question 11

Motor nerve

Answer 11

Sends a message from the brain to a muscle

Question 12

Nervous system

Answer 12

Brain, spinal cord, all the nerves

Question 13

Sensory system

Answer 13

Sends a message to brain from the sense organ

Question 14

Motor nerve

Answer 14

Sends a message from the brain to muscle

Question 15

Messages

Answer 15

Are sent long nerves as pulses of electricity

Question 16

The eye contains

Answer 16

The cornea, iris, lens, pupil, retina, optic nerve and ciliary muscle