Exploring the Nervous System

What are the main components of the nervous system?

• Brain, spinal cord, and nerves

• Heart, brain, and lungs

• Eyes, ears, and nose

• Bones, muscles, and skin

What role do neurons play in the nervous system?

• They produce hormones

• They store energy

• They carry messages back and forth

• They digest food

What happens when a neuron is stimulated?

• It grows larger

• It changes color

• It generates a tiny electrical impulse

• It stops working

What are neurotransmitters responsible for?

• Generating electrical impulses

• Carrying impulses across the gap between neurons

• Protecting the brain

• Storing information

Which part of the nervous system handles involuntary actions?

• Peripheral nervous system

• Central nervous system

• Autonomic nervous system

• Somatic nervous system

What does the somatic nervous system control?

• Blood circulation

• Involuntary actions

• Voluntary actions

• Digestive processes

What triggers a reflex action?

• A signal from the stomach

• A signal from the heart

• A pain message to the spinal cord

• A thought process

Why is your tongue more heat sensitive than your heel?

• It has more receptors

• It is closer to the brain

• It is used more often

• It is thinner

What happens when the spinal cord receives a pain message?

• It sends a signal to the brain

• It reacts quickly by contracting muscles

• It sends a signal to the heart

• It stops the pain

Why is the nervous system important?

• It stores energy

• It coordinates all actions and reactions

• It produces hormones

• It helps in digestion