Understanding Neurons and Nerves

What are nerves primarily composed of?

• Muscles

• Neurons

• Bones

• Blood cells

What is the main function of sensory neurons?

• To send signals to muscles

• To pass signals to the brain

• To insulate axons

• To produce myelin

What is the role of motor neurons?

• To send signals to the brain

• To send signals to muscles

• To receive signals from dendrites

• To produce neurotransmitters

What part of the neuron receives signals?

• Axon

• Myelin

• Dendrites

• Cell body

What is the function of myelin in neurons?

• To slow down signal transmission

• To act as an insulator

• To produce neurotransmitters

• To connect neurons

What happens when myelin is damaged?

• Signals are sent more quickly

• Neurons become stronger

• It becomes harder for neurons to carry messages

• Dendrites grow longer

Through which part of the neuron does the signal travel after the cell body?

• Dendrites

• Axon

• Myelin

• Synapse

What analogy is used to describe the function of myelin?

• A two-way highway

• Plastic insulation around wires

• A bridge connecting neurons

• A sponge absorbing water

What is the final destination of a signal traveling through a neuron?

• The cell body

• The axon

• The dendrites of the next neuron

• The myelin sheath

What is the primary role of the central nervous system in relation to nerves?

• To produce myelin

• To act as a one-way street for signals

• To send and receive signals

• To store signals