Nervous System and Action Potentials

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 two divisions of the nervous system?

• Central and Lower nervous systems

• Central and Peripheral nervous systems

• Lower and Cerebral nervous systems

• Central and Muscular nervous systems

A nerve cell is called a:

• neutron

• nerve

• neuron

• synapse

Tags

NGSS.MS-LS1-8

NGSS.MS-LS1-3

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

Our ______ receive messages and send them to the brain. The brain sends messages to our body on how to respond.

• heart

• lungs

• nerves

Tags

NGSS.MS-LS1-8

This system controls everything you do.

• Nervous system

• Olfactory system

• Respiratory system

• Endocrine system

Without the Nervous System, you couldn't...

• walk

• breathe

• think

• all of the above

Tags

NGSS.MS-LS1-3

Has two specialized extensions, one for receiving signals and one for sending

• Neurons
• Glial Cells