Nervous system

Which part is the largest?

• System

• Organ

• Tissue

• Cell

Which part is the smallest?

• System

• Organ

• Tissue

• Cell

The nervous system is the only system without organs.

• True

• False

The brain is part of the nervous system.

• True

• False

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

• A brain

• An axon

• A dendrite

• A synapse

What do impulses travel along through the body?

• The brain

• An axon

• A dendrite

• A synapse

Choose the correct one.

• hearing - ear - in the cochlea - sound waves

• sight - ear - in the cochlea - sound waves

• hearing - skin - in the cochlea - sound waves

• hearing - ear - in the cochlea - reflect light

Choose the correct one.

• smell - eye - in the retina - reflected light

• sight - taste buds - in the retina - reflected light

• sight - eye - in the retina - reflected light

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

Choose the correct one.

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

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

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

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

Choose the correct one

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

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

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

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