The Nervous System

How many nerves do we have in our body?

• Three nerves

• About a billion nerves

• A thousand nerves

• One giant nerve

What are two of the major organs that are a part of the nervous system?

• Veins and arteries

• Ganglion and diaphragm

• Spinal cord and brain

• Converse and Vans

The nerve cell is more specifically called a(n)...

• axon

• dendrite

• myelin sheath

• neuron

What is the cell body?

• The long part of a nerve cell, it brings impulses away from the cell body.

• The large part of a neuron, where the nucleus is located. It connects the dendrites and axon to each other.

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NGSS.MS-LS1-2

What is the spinal cord?

• Long bundles of neurons that run up your spinal column. It carries impulses from all parts of the body to the brain and from the brain to all parts of your body. Reflexes occur here.

• Regulates the flow of information between the brain and the rest of the body.

Neurotransmitters are...

• Proteins

• Hormones

• Biochemicals

• Impulses

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NGSS.MS-LS3-1

An automatic response to a stimulus that you don't have to think about is called a...

• The Flash response

• Blink response

• Rapid fire response

• Reflex

The gap between neurons is called a(n)...

• Nucleus

• Ganglion

• Synapse

• Neurotransmitter

Muscle coordination, balance, and posture are controlled by which part of the brain?

• Cerebrum

• Cerebellum

• Spinal cord

• Medulla

The part of your brain that connects the brain to the spinal cord AND is responsible for breathing and blood pressure is the...

• Cerebrum

• Cerebellum

• Spinal cord

• Brain stem