Unit 2 Part 1 Flashcards
(64 cards)
Acetylcholine (ACH)
Type
- Ex/In
Function
- learning, memory, attention, muscle function
Surplus
- Muscle Spasms
Deficit
- Alzheimer’s Disease
Dopamine
Type
- Ex/In
Surplus
- Schizophrenia, Drug addiction
Deficit
- Parkinson’s disease
Serotonin
Type
- In
Surplus
- Hallucinations
Deficit
- Depression, Mood Disorders
Norepinephrine
Type
- Ex
Function
- Arousal, alertness especially in flight-or-fight response, Mood elevation
GABA
Type
- In
Surplus
- Sleep and Eating Disorders
Endorphins
Type
- In
Function
- Pain Control, stress reduction, positive emotions
Excitatory (Ex)
Increase in likelihood the neuron will fire an action potential.
Inhibitory
Decrease in likelihood the neuron will fire an action potential.
Dendrite
Recieve the message (branch like)
Axon
Pathway in which the message travels.
Myelin Sheath
- Fatty tissue that wraps around the Axon
- Helps speed the message up and protects the Axon
- Degenerate = Multiple Sclerosis
Synapse
Space between 2 Neurons
Axon Terminals/Terminal Buttons
Sends the message off to the next neuron
- Has neural transmitters inside
Neural Transmitters
The message
Soma (Cell Body)
Keep the Neuron alive
- Protects, Takes nutrients, rids of waste
Nucleus
The brain of the neuron
Neuron
Used to transmit messages from the brain to whatever takes the message in the body.
Resting Membrane Potention
The neuron is waiting and ready to send a message.
Threshold
Minimum amount of stimulus needed in order to send a message.
Action Potential
Process of the message moving through the neuron
Refractory Period
Short period of rest, happens after action potential (Action potential cannot happen during this time)
Stimulant
Block the reputake of dopamine, norepinephrine, and serotonin in the synapses of the CNS
Depressants
Change conciseness by increasing the production of the neurotransmitter GABA and decreasing the production of the neurotransmitter acetylcholine.
Opioids
The chemical makeup of opioids is similar to the endorphins, the neurotransmitters that serve as the body’s “natural pain reducers”.