Exploring the Nervous System: Fun Facts for Kids

What components make up the nervous system?

• Heart, lungs, and brain

• Brain, spinal cord, sensory organs, and nerves

• Liver, kidneys, and stomach

• Muscles, bones, and skin

Why do we sometimes react before we understand why?

• Because our muscles are very strong

• Because we are always alert

• Because our nerves send signals faster than we can think

• Because our brain is slow

What are neurons responsible for?

• Transporting and storing information

• Digesting food

• Filtering waste

• Pumping blood

Approximately how many neurons are in the human brain?

• 100 billion

• 10 million

• 1 trillion

• 1 million

Which nerve is responsible for sending visual information to the brain?

• Cranial nerve

• Ocular nerve

• Cochlear nerve

• Olfactory nerve

How do we perceive taste?

• Using our nose

• With our eyes

• Through our skin

• Using our tongue and cranial nerves

What does the nervous system control besides sensory functions?

• Bone density

• Muscle growth

• Breathing, heartbeat, blood flow, and digestion

• Only sensory functions

What happens to the brain during sleep?

• It becomes inactive

• It grows in size

• It processes the events of the day

• It stops working

Why is sleep important for the brain?

• It helps the brain to rest

• It allows the brain to sort memories and process emotions

• It makes the brain larger

• It stops the brain from working

What does the brain do with memories during sleep?

• Ignores them

• Sorts them into long-term memories

• Deletes them

• Forgets them