8R - Review Nervous System

What is the main function of the nervous system?

• to inhale oxygen and exhale carbon dioxide

• to break down food consumed by a person for nutrients

• to control the body's activities by relaying messages

• to control the body's movements

What are the three parts of the nervous system?

• brain, spinal cord, nerves

• brain, lungs, spinal cord

• heart, brain, nerves

• brain, nerves, neurons

A nerve cell is called a:

• neutron

• nerve

• neuron

• synapse

Dendrites are part of a neuron that carries electrical signals _______ the cell body.

• to

• away

• in between

Axons are part of a neuron that send electrical signals ________ the cell body

• to

• away from

• in between

True or False: the cell body of a neuron has a nucleus.

• True

• False

The space between an axon of a neuron that is communicating with a dendrite of another neuron is called a ________________.

• Neuron

• Brain message

• Stimulus

• Synapse

Which of the following is NOT a sense?

• hearing

• nose

• smell

• touch

The brain controls the body's functions.

• True

• False

How is a message delivered from the "sending" neuron to the "receiving" axon?

• sympathetic nerves

• hormones

• medulla oblongata

• neurotransmitters