Unit 1 AP Psych

Neuron

A specialized cell that transmits information

Cell body/Soma

The cell’s life support center

Dendrites

Recieve messages from the other cells

Axon

Passes messages away from the soma to other neurons, muscles, or glands.

The Myelin Sheath

Fatty tissue that has two jobs

The myelin sheath’s two jobs are

to insulate the axon AND speed up neural impulses

Not all of your axon’s are protected until you are

25 y/o

If your body attackes your myelin sheath you could develop

Multiple Sclerosis

M.S. is…

slowed communication with eventual muscle loss

The firing of the neuron means it is

talking

To have resting potential means something is

polarized or aat homeostasis

Graded potential means

there is a slight shift in energy

The threshold of excitation is

the level of impulse exceeded to fire

Action Potential is when

the firing happens

The refractory period is when

the neuron has to recharge and it CANNOT fire

Transduction is when electrical energy

turns to chemical, back to electrical

What substance hops through the pumps on the axon?

Na (Sodium)

Saltatory conduction is when the message

hops from node to node

An all or nothing reponse means

something is firing or not firing

reuptake occurs after neurotransmitters bind to receptorsites and then

they return to the presynaptic cell

SSRI is an anti-depressant that stands for

Selective Seratonin Reuptake Inhibitor

SNRI stands for

Selective norepinephrine reuptake inhibitor

Inhibitory means to

stop or slow down

Excitatory means to

make more or speed up

Endorphins are a type of neurotransmitters that are

inhibitory neural regulators

Deteriorating of Acetylcholine can cause

Alzheimers

Myasthenia is when the body mistakenly attacks

Aceteylcholine

An agonist mimmicks

neurotransmitters

an example of an agonist is

morphine

What’s job is to block neurotransmitters?

Antagonist.

NARCAN is an example of a

agtagonist.

Depressants are drugs that

slow you down.

Depressants are

alocohol, barbituates, and opiates

Stimulants are meant to

speed you up

Caffine, nicotine, cocaine, and Ecstasy are all examples of

Stimulants

Hallucenegenics distort

perception

Hallucenegenics cause mind

manifesting

Examples of hallucegens are

LSD/acid and marijuana

Your hypothalamus controls the

pulinary gland

The pulinary gland secretes many different

hormones

Chrelin is released when you are

hungry

What tells you youre full

Leptin

Not enough of what causes Parkinsons disease?

Dopamine

GABA helps calm you down and is a major

inhibitory

Glutamate can overstimulate and is a major

excitatory

Not enough seratonin can lead to

depression