CNS
What are the 2 parts that make up the CNS?
The brain and spinal cord
What are the 2 main parts of the PNS?
The sensory part and the motor part.
What is a neuron?
A neuron is a cell that moves messages in the form of electrical energy.
What is an axon?
An axon is a extension of a neuron.
What is the front of the eye that is covered by a clear membrane called?
The cornea
What does CNS stand for?
The Central Nervous System
What does PNS stand for?
Peripheral Nervous system.
How many neurons does your brain have?
100 billion
How many axons are there in a neuron?
Once the impulses reach your brain they create an awareness called a ____
sensation
What cells send and receive electrical signals?
Specialized cells
What are the processes the brain controls that you do not have control of called?
Involuntary processes
Where do neurons carry info
From the body to the brain
What is the end of an axon called?
Axon terminal
What Is a fluid filled organ of the inner ear called?
The cochlea
What is the brain's job?
The brain is the Central command organ and constantly receives impulses from all over your body.
What are the actions of your brain you can control called?
Voluntary processes
What do glial cells do?
What is a dendrite?
A short, branched extension of the cell body
What 5 basic tastes does your taste cells react to? (you only have to name one)
sweet sour salty bitter and savory
The Spinal cord allows your brain to communicate with the rest of your body.
What does the PNS connect to muscles and organs?
The CNS
How does your nervous system work?
It works by receiving info from the environment and translating that info into electrical signals.
What is the large region that the neuron is made up of called?
The cell body
What sensory receptors react to chemicals in the air?
olfactory cells