The 3 Main Systems
What of the 3 main systems is the brain in?
The central nervous system/ the CNS.
A reflex is voluntary. True or false or both?
False.
Name a part of the nervous system.
Nerves, the spinal cord, the brain stem, the amygdala, the cerebrum, the cerebellum, the brain, the CNS, the PNS, the ANS.
Where are nerves?
Everywhere.
A helmet protects your...
Head, skull and brain.
What order did we say the 3 main systems in?
1. The central nervous system.
2. The peripheral nervous system.
3. The autonomic nervous system.
What are the 5 senses?
Touch, taste, smell, sound and sight.
What are hemispheres of the brain called?
The left hemisphere and the right hemisphere.
What in the head is protecting the brain?
The skull.
Where in the nerve cell is the nucleus?
The middle of the soma/cell body.
What are the 3 main systems?
The central nervous system, the peripheral nervous system and the autonomic nervous system.
What body system is this project about?
The nervous system.
The amygdala does what?
It primarily manages emotions.
What is the biggest part of the brain?
The cerebrum.
Around how many neurons does our brain lose every year?
1-2 grams of neurons.
What is the thickest peripheral nerve called?
The sciatic nerve.
Do reflexes need senses for them to work?
Yes.
An average brain weights 3...
Inches, Pounds, Centimeters, Kilograms, Centigrams or 1/2 pounds?
Pounds.
Where does the spinal cord start and end?
It starts at the neck and end a bit more than halfway down the back.
What other body systems does the nervous system need and interact with?
The immune system, but also all other body systems.
Give 2 examples specific of what the Autonomic nervous system does. (ex. keeps your heart rate without you having to think about it...)
Keeps you breathing at night, digests your food, regulates body temperature, regulates the production of saliva, ex...
Which of these are reflexes?
A - Stretching B - Gagging C - Laughing D - Blinking
A, B and sometimes D.
What does the brain stem do?
It connects the brain to the spinal cord and body functions (like breathing).
Where is the sciatic nerve in the human body?
The hip and upper leg.
What is the most important part of the nervous system?
No part is the most important, they all have different jobs and are all vital to our survive.