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Nervous system

Total questions: 16

Worksheet time: 8mins

Name
Class
Date
1.

Which part is the largest?

a)

System

b)

Organ

c)

Tissue

d)

Cell

2.

Which part is the smallest?

a)

System

b)

Organ

c)

Tissue

d)

Cell

3.

The nervous system is the only system without organs.

a)

True

b)

False

4.

The brain is part of the nervous system.

a)

True

b)

False

5.

What usually converts a stimulus from a sense organ into an impulse?

a)

A brain

b)

An axon

c)

A dendrite

d)

A synapse

6.

What do impulses travel along through the body?

a)

The brain

b)

An axon

c)

A dendrite

d)

A synapse

7.

Choose the correct one.

a)

hearing - ear - in the cochlea - sound waves

b)

sight - ear - in the cochlea - sound waves

c)

hearing - skin - in the cochlea - sound waves

d)

hearing - ear - in the cochlea - reflect light

8.

Choose the correct one.

a)

smell - eye - in the retina - reflected light

b)

sight - taste buds - in the retina - reflected light

c)

sight - eye - in the retina - reflected light

d)

sight - eye - cells in the taste buds - reflected light

9.

Choose the correct one.

a)

smell - nose - cells inside nostrils - chemicals in the air

b)

taste - nose - cells inside nostrils - chemicals in the air

c)

smell - nose - cells in the taste buds - chemicals in the air

d)

smell - nose - cells inside nostrils - chemicals in the food

10.

Choose the correct one

a)

smell - tongue - cells in the taste buds - chemicals in food

b)

taste - eye - cells in the taste buds - chemicals in food

c)

taste - tongue - cells in the taste buds - chemicals in food

d)

taste - tongue - cells in the taste buds - chemicals in the air

11.

Choose the correct one.

a)

touch - skin - in the nostrils - heat, pain, pressure, texture

b)

touch - nose - in the dermis - heat, pain, pressure, texture

c)

touch - skin - in the dermis - chemicals in the air

d)

touch - skin - in the dermis - heat, pain, pressure, texture

12.

Impulses enter a neuron through their dendrites , then travel along the ___________ to reach another neuron.

a)

sensory neurons

b)

motor neurons

c)

axon

d)

interneurons

13.

In reflexes, impulses reach the _________ before they reach the brain.

a)

motor neurons

b)

spinal cord

c)

axon

d)

dendrites

14.

The brain is made up of millions of ___________.

a)

spinal cords

b)

interneurons

c)

motor neurons

d)

sensory neurons

15.

Effectors are given a message by __________ to carry out a response to

a stimulus.

a)

interneurons

b)

spinal cord

c)

sensory neurons

d)

motor neurons

16.

What is the next step?

  1. 1. Receptor cells detect a stimulus.

  2. 2. This information is transformed into an impulse.

  3. 3. ______________________________

a)

An impulse is carried along a sensory neuron to the spinal

cord where it is connected directly to a motor neuron within a

reflex arc.

b)

An effector carries out a response to prevent injury.

c)

A motor neuron carries a message to an effector.