Grade 10 Nervous System Quiz

What is the functional unit of the nervous system?

• Brain

• Neuron

• Spinal cord

• Nerve

What is the main function of a neuron?

• Pump blood

• Carry oxygen

• Transmit electrical signals

• Store fat

Which part of the neuron receives messages?

• Axon

• Axon terminal

• Cell body

• Dendrites

What part of the neuron sends messages to the next cell?

• Dendrites

• Axon terminal

• Nucleus

• Myelin sheath

In what order do impulses travel through a neuron?

• Axon → Cell Body → Dendrites → Terminal

• Cell Body → Terminal → Axon → Dendrites

• Dendrites → Cell Body → Axon → Axon Terminals

• Terminal → Axon → Cell Body → Dendrites

What is the function of the myelin sheath?

• Stores energy

• Speeds up nerve impulses

• Controls movement

• Digests nutrients

What do sensory neurons do?

• Send signals to muscles

• Connect neurons together

• Carry messages from the body to the brain/spinal cord

• Make decisions

What is the correct path of a reflex arc?

• Motor neuron → Interneuron → Sensory neuron

• Sensory neuron → Interneuron → Motor neuron

• Interneuron → Sensory neuron → Motor neuron

• Brain → Spinal cord → Motor neuron