1. Nervous System

2. Nervous System
How did our nervous system work in the Impulse Activity we just completed?
We sensed the touch.
A message was sent to our brain.
Our brain sent a message to our muscles.
Our muscles squeezed the hand.

3. Organs of the Nervous System
Brain= uses information it receives from nerve impulses to coordinate actions

4. Organs of the Nervous System
Nerves= carry messages
throughout the
body

5. Organs of the Nervous System
Spinal Cord= Central communication system.
Nerve center
Messages are sent to the brain through the spinal cord.
Exception: Reflexes skip the spinal cord and go straight to the brain.

6. Functions of the Nervous System
Functions include:
Control center
Communication network
Coordinates all actions and reactions
Send messages as electrical impulses

7. Functions of the Nervous System
Functions include:
Allows us to
Think
Evaluate
Remember

8. Functions of the Nervous System
Functions include:
Sensory Input- Senses send messages to the brain.
Integration- The brain interprets and translates.
Motor Output- The brain sends messages to body.

9. Functions of the Nervous System
Functions include:
– Central Nervous
System- Maintains
homeostasis by
regulating vital body
functions such as
breathing, heart rate,
hormones, etc.

10. Functions of the Nervous System
Functions include:
– Peripheral
Nervous System-
Sensory Neurons- Carry information toward the central nervous system
Motor Neurons- Send impulses away from the central nervous system