Introduction
What do we react to all the time?
Stimulus
What does the spinal cord look like?
A long rod of many nerves.
Where is the brain located?
Inside the skull.
The brain cells are called what?
Neurons.
When you eat a cookie the brain acts in 4 steps. What is the first step?
The eye sends a message to the brain about where the cookie is located through a nerve.
What are some examples of stimulus?
Loud noises, hot things, someone saying our name, etc.
What is the spinal cord inside of?
The spine.
How big is your brain?
The size of two fists.
How many neurons are in your brain?
Billions.
When you eat a cookie the brain acts in 4 steps. What is the second step?
The cerebrum thinks about the message and decided that you want to eat the cookie.
What does the nervous system control?
Everything in our bodies
What organ is your spinal cord attached to?
The Brain.
What is the largest part of the brain called that does the thinking, reasoning and stores your memory.
Cerebrum.
What is the main job of neurons?
To send and receive messages of other cells.
When you eat a cookie the brain acts in 4 steps. What is the third step?
The cerebrum sends a message to the arm muscles so that it moves and picks up the cookie and puts it in your mouth.
When the nervous system receives information, what does it do with that information?
It sends the messages back so we can respond
How many pairs of nerves branch off the spinal cord?
31 pairs.
The base part of your brain controls involuntary muscles for breathing, digesting, coughing, etc. What is it called?
Medulla Oblongata.
What do we call a bunch of neurons?
Nerves.
When you eat a cookie the brain acts in 4 steps. What is the fourth step?
The jaw and tongue are controlled by the cerebrum, but saliva and peristalsis are controlled by the medulla oblongata.
Each nerve branch from the spinal cord goes into smaller nerves, which allows what?
Every part of your body to be reached.
The back part of the brain that is in charge of coordination, balance, walk, run is called?
Cerebellum.
How are messages sent from nerve cell to nerve cell along what?
A nerve.