1. September 21, 2017 Materials: ISN, pencil
Bell Ringer:
When your body system needs additional energy, like when you run, things happen in your body systems to give you the additional food and oxygen you need in your cells.
Which of the following is happening to send more energy to cells when you are running?
Your skeletal system gets stronger.
Your digestive system breaks down food faster.
Your heart pumps blood with more force.
Your lungs work harder and faster.
II and IV
III and IV
I and III
I and II

2. EQ: What is the main function of the Nervous System?
CO: We will take notes on the main function of the Nervous System.
CT: I will discuss with my shoulder partner the main function of the Nervous system.
SG: I will manage my time wisely.

3. Nervous System

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

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

6. 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.

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

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

9. 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.

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

11. 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

12. Video