Neuronal structure Flashcards
Use of acetylcholoine
acts on muscles, causes them to contract
A lot of poisons influence the actions of what neurotransmitter?
Acetylcholine
norepinephrine is used for:
important role in alertness and mood
what is the major inhibitory neurotransmitter of the brain
GABA
What is the role of dopamine?
Implicates in movement, attention, and learning, associated with parkinsons, where you dont get enough
what occurs when you get too much dopamine?
psychosis
What neurotransmitter is responsible for sleeping
serotonin
What are the “natural opiates” of the brain?
Endorphins, they have a similar structure to the opiates
What is a sagittal cut of the brain?
vertical cut from front to back
What is MRI stand for, and what is it used for?
Magnetic resonance imaging, provides static images of the brain
What is a problem with MRI?
very expensive
What is Trans-Magnetic Stimulation
Used for determining the functions of different parts of the brain by stimulating them
What is Positron Emission Tomography?
They use a scan to find out what parts of the brain are active while a specific function is being performed
What are evoked potentials?
When a stimulus is presented, the changes in electrical activity can be observed and detected
What the advantages for Evoked potentials (economically)
way less expensive than MRI
