What Is The Brain Flashcards
1
Q
What is the brain?
A
Complex organ that controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger, and every process that regulates your body
2
Q
What is the brain made up of?
A
Weighing about 3 pounds, the brain is 60% fat, and 40% combo of water, protein, carbohydrates and salts
3
Q
What is grey matter?
A
- Dark outer portion of the brain
- Primarily composed of neuron somas
- Responsible for processing & interpreting info
4
Q
What is white matter?
A
- White inner portion of the brain
- Primarily composed of axons wrapped in a myelin
- Transmits info to other parts of the nervous system
5
Q
How does the brain work?
A
- The brain sends and receives chemical & electrical signals throughout the body.
- Different signals control diff processes & your brain interprets each
- Some messages are kept in the brain, while some are sent down to the spine and through nerves to diff parts of the body