The Nervous System: This Is Your Brain Flashcards
Name 3 things our nervous system, (brainstem) controls that we don’t need to think about.
1-Breathing
2-Heartbeat
3-Commanding glands to produce more or less of their hormones
What are the main 3 parts of the Nervous System.
1-The brain
2-The Nerves
3-The Spinal Cord
In the brain, the control center is made up of three different parts. Name them.
1-Cerebrum
2-Cerebellum
3-Brainstem
Whats the upper part of the brain?
The cerebrum
Whats the lower part of the brain.
The cerebellum.
What’s the brainstem?
It’s the beginning of the spinal cord but isn’t technically called the spinal cord because it’s connected to the brain.
What are nerves?
The bundle of axons in one more organs that carry messages to the brain.
Whats the spinal cord?
Where nerves go back and forth from the body to the brain.
What controls our reflexes?
The spinal cord, the brain doesn’t have time to think about it.
What are neurons?
They are the cells that transmit electro/chemical messages.
What are neurons made of? (Name 4 things)
1-Dendrites
2-A cell body
3-An axon
4-Terminals
What do dendrites do?
They receive nerve impulses.
If the neuron fires a message, the nerve impulse will travel down the ______.
Axon
After traveling down the axon, the nerve impulses will release chemicals at the ______ ______, to do what?
Terminal Buttons to send a message to another neuron..
What insulates the electrical messages?
Myelin.
