Neural Communication
How Neurons Communicate
Chemical Influence
Nervous System
Examining the Brain
100
A neural cell made up of specific structures.
What is a neuron?
100
Chemicals contained in terminal buttons that enable neurons to communicate.
What are neurotransmitters?
100
Neurotransmitter associated with pain control.
What are endorphins?
100
Part of the nervous system that consists of our brain and spinal cord.
What is central nervous system?
100
Removal or destruction of the brain.
What are lesions?
200
Wirelike structure ending in the terminal buttons that extends from the cell body.
What is an axon?
200
Space between the terminal buttons of one neuron and the dendrites of the next neuron.
What is a synapse?
200
Neurotransmitter associated with mood control.
What is serotonin?
200
Controls the following functions of the human body: heart, lungs, internal organs, glands, etc.
What is autonomic nervous system?
200
Uses magnetic fields to measure the density and location of brain material.
What is magnetic resonance imaging (MRI Scan)?
300
Rootlike parts of the cell that stretch out from the cell body.
What are dendrites?
300
Level of neurotransmitters required to "fire" a neuron.
What is threshold?
300
Associated with motor movement and alertness.
What is dopamine?
300
Mobilizes our body to respond to stress.
What is sympathetic nervous system?
300
Device that detects brain waves.
What is electroencephalogram (EEG)?
400
Electric charge that spreads down the length of a neuron after the threshold is achieved.
What is action potential?
400
Areas on a dendrite designed to receive a specific neurotransmitter.
What are receptor sites?
400
Chemicals released from the terminal buttons of a neuron that inhibit the next neuron from firing.
What are inhibitory neurotransmitters?
400
Controls voluntary muscle movements.
What is somatic nervous system?
400
Combines elements of the MRI and PET scans.
What is functional MRI (fMRI)?
500
Fatty covering around the axon of some neurons that speeds neural impulses.
What is myelin sheath?
500
Neuron either fires completely or it does not fire at all.
What is all-or-none principle?
500
Associated with motor movement.
What is acetylcholine?
500
All of the nerves in your body other than the brain and spinal cord nerves.
What is peripheral nervous system?
500
Measures how much of a certain chemical parts of the brain are using.
What is positron emission tomography (PET Scan)?
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