NTs & Receptors
Precursor of 5HT
Tryptophan
What is the charge of a resting action potential
~ -70mV
What is the mechanism of LSD
Serotonin agonist
What is your brain mostly made out of?
Fat —> white matter?
Nicotine is to Muscarine as Curare is to ...
Atropine
Ion that leaves cell and is responsible for repolarization
K+
High levels of Dopamine cause which disorder(s)?
Schizophrenia
How many thoughts does the average human have per day?
6000
These receptors produce slower, longer lasting effects in the postsynaptic neuron
metabotropic
Name the 4 stages of the action potential
1. initiation (resting state)
2. depolarization
3. repolarization
4. undershoot
return to resting state
Which receptor are Benzodiazepines agonists on?
GABAᴬ
What do you have more of, neurons or glial cells?
Glial cells
List the 6 ways NTs are reused/terminated
1. Enzymes
2. Diffusion
3. Autoreceptors
4. Reuptake pumps
5. Glial cells
6. Receptors
Explain ways that APs are summated
Temporal, Spatial, Cancellation
What is Multiple Sclerosis
Autoimmune disorder attacking myelin of CNS
The Autonomic part of the PNS is separated into (explain functions of each)
Sympathetic & Parasympathetic
5HT stands for
5-Hydroxytryptamine
Differentiate the 2 refractory periods
Absolute refractory - Na+ channels inactive
Relative refractory - slow closing K+ channels causing hyperpolarization
List 10 psychotropics agents and their corresponding NTs
Alcohol (GABA&GLU)
Cocaine -DA
Amphetamine - DA
Ketamine (Glu&NE)
Marijuana (DA&NE)
LSD - 5HT
Barbiturates (GABA)
Benzodiazepines (GABA)
L-DOPA - DA
SSRIs - 5HT
How often do neurons fire every second?
1000 times per second