1. What on earth is this?

2.  Composed of your: ◦ Brain ◦ Spinal Cord ◦ Nerves ***It is how we receive information about EVERYTHING we do in life!!!!

3.  The nervous system is divided into two different sections: ◦ Central Nervous System ◦ Peripheral Nervous System

4.  Brain  Spinal Cord

5.  If stretched out, the cerebral cortex would be 0.23 sq. m (2.5sq.ft), the area of a night table.  The composition of the brain = 77-78% water, 10-12% lipids, 8% protein, 1% carbs, 2% soluble organics, 1% inorganic salt.  The brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.  The slowest speed at which information travels between neurons is 260 mph!!!

6.  The energy used by the brain is enough to light a 25 watt bulb.  More electrical impulses are generated in one day by a single human brain than by all the telephones (including cell phones) in the world.

7. (In other words, how many thoughts does it have per day?) * Take a guess…………………………

8.  70,000 is the number of thoughts that it is estimated the human brain produces on an average day!!!!!

9.  The command center for: ◦ Thinking ◦ Processing ◦ Actions ◦ Ideas ◦ Emotions ◦ EVERYTHING!!!

10.  The brain’s best friend ◦ Relays messages from all parts of the body to the brain……. ◦ THEN, it receives the message from the brain and relays the brain’s message to muscles, glands, etc. **** The spinal cord is like a bad gossiper, but in a good way this time.

12. Involves all the nerves of the body.  Carries messages to and from the body.

14.  Through: ◦ Touch (Ex: Blindfolded….. Hand by stove) ◦ Hearing (Ex: Scratching on chalkboard, loud screeching girl). ◦ Sight (Ex: Seeing a handsome boy or attractive young lady). ◦ Taste (Ex: The worst bowl of homemade chili in your life). ◦ Smell (Ex: You smell a BBQ in the summer time or cinnamon buns baking in the kitchen at school).

15.  Fire example……

17.  Two Main Parts: ◦ Somatic System: actions that you can control (Ex: looking, playing basketball, writing, etc.) ◦ Autonomic System: actions that you do NOT usually control (Ex: heartbeat, breathing, digestion, etc.)

18.  Autonomic nerves control involuntary or semi-voluntary functions, such as heart rate, blood pressure, digestion, and sweating. When the autonomic nerves are damaged, a person's heart may beat faster or slower.

19.  Parapalegic vs. Quadrapalegic

21.  Concussion