The Nervous Systen

True or false: The nervous system is made up of the brain and spinal cord only.

• True

• False

The signals that the brain receives travels up the

• Nose

• Spinal Cord

• Eyes

• Nerve

Why do we move our hand from a hot surface before we feel the burn?

Which of the following is a component of the nervous system?

• Muscles

• Bones

• Spinal cord

• Kidneys

How many neurons are estimated to be in the human brain?

• 100 million

• 1 billion

• 10 billion

• 100 billion

What nerve sends messages from your ears to your brain, allowing you to hear?

• Ocular nerve

• Cochlear nerve

• Olfactory nerve

• Cranial nerve

Which of these bodily functions is controlled by the nervous system without conscious thought?

• Reading a book

• Digestion of food

• Playing a game

• Writing a letter