The Nervous System

The Nervous System

The body system that controls all other systems...

Quick Review of what we have covered this week

Central Nervous System

• Also called...CNS

• The CNS is made up of the brain and spinal cord.

Peripheral Nervous System

• Also called...PNS

• Connects the nerves located throughout the body to the spinal cord.

Multiple Choice

Our nervous system helps us...

• Transport nutrients and get rid of waste.

• Absorb oxygen & clean our blood.

• Transport information around the body.

Multiple Choice

Select the three main parts of the nervous system.

• Muscles, spinal cord and nerves.

• Spinal cord, brain and nerves.

• Muscles, senses and brain.

Multiple Choice

This is a picture of the 

• peripheral nervous sysyem
• central nervous system
• respiratory system
• circulatory system

Multiple Choice

This is a picture of the 

• peripheral nervous sysyem
• central nervous system
• respiratory system
• circulatory system

Poll

I can explain the function of the Nervous system, and differentiate between the CNS and PNS.

The Brain

• Cerebrum (largest part, controls speech, learning, memory, emotion, voluntary movements)

• Cerebellum (controls balance & coordination)

• Brain Stem (Located at the base/bottom of the brain and connects it to the spinal cord)

Multiple Choice

What structure is grey in this picture?

• Cerebrum

• Cerebellum

• Brain Stem

Multiple Choice

The brain stem is labeled as #...

• 1

• 2

• 3

Multiple Choice

The cerebellum is labeled as #...

• 1

• 2

• 3

Multiple Choice

Which part of the brain controls your balance and coordination?

• cerebrum

• brain stem

• cerebellum

Multiple Choice

What does the cerebrum control?

• controls memory and voluntary actions

• controls balance and coordintion

• connects brain and spinal cord

Poll

I can identify the 3 parts of the brain and what they control or do for the body.

Neuron (aka "nerve cell")

• Function = carry messages to and from the brain

• Sensory Neurons - send information from the eyes, ears, nose, tongue, and skin to the brain

• Motor Neurons - carry messages away from the brain to the rest of the body.

Neuron Diagram

• Axon - pass messages to other neurons, muscles, or glands

• Dendrite - receive messages from other cells

Multiple Choice

What part of the neuron receives the message from the previous neuron?

• Axon

• Dendrites

• Cell Body

Multiple Choice

When you react to catch a dropped ruler your body reacts in this order:

• 1) muscles contract in hand

  2) eyes sense ruler move

  3) message sent to brain

  4) message sent to muscles

• 1) message sent to muscles

  2) muscles contract in hand

  3) message sent to brain

  4) eyes sense ruler move

• 1) eyes sense ruler move

  2) message sent to brain

  3) message sent to muscles

  4) muscles contract in hand

Multiple Choice

What is the main function of the nervous system?

• clean waste from the cells

• absorb nutrients for energy

• deliver messages to the brain

Poll

I CAN...explain the role of the nervous system within the body.