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

• Enables us to react to our environment; made up of billions of nerve cells, it receives and interprets information and sends commands to the body.

• 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 cerebellum is labeled as #... click on image to enlarge

• 1

• 2

• 3

The brain stem/medulla is labeled as #...

• 1

• 2

• 3

#1 is pointing to the...

• cerebrum

• cerebellum

• medulla

Which part of the brain controls involuntary movements such as digestion and your heartbeat?

• cerebrum

• cerebellum

• medulla/spinal cord