Neural Communication (Module 9) Flashcards Preview

Unit 2 - AP Psych > Neural Communication (Module 9) > Flashcards

Flashcards in Neural Communication (Module 9) Deck (13)
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1
Q

Biological Psychology

A

Concerned with the links between biology and behavior.

2
Q

Neuron

A

A nerve cell.

3
Q

Dendrite

A

Extensions of a neuron that receives incoming messages and impulses them toward the cell body.

4
Q

Axon

A

Transfers messages to other neurons

5
Q

Myelin Sheath

A

Encasing the fibers of many neurons

Enables a vastly greater transition speed.

6
Q

Action Potential

A

A neural impulse. A brief electrical charge that travels down an axon.

7
Q

Refractory Period

A

After a neuron fires an action potential is pauses for a short period to recharge

8
Q

Sodium-Potassium Pumps

A

Pump positive ions out from the inside of the neuron, making them ready for another action potential.

9
Q

Depolarization

A

Occurs when positive ions enter the neuron, making it more prone to firing an action potential.

10
Q

Hyperpolarization

A

Occurs when negative ions enter the neuron, making it less prone to firing an action potential.

11
Q

Threshold

A

Level of stimulation required to trigger a neural impulse.

12
Q

All-Or-None Response (Toilet)

A

Neurons either fire or they don’t

If the depolarizing current fails to exceed the threshold, a neuron will not fire.

13
Q

Synapse

A

Junction between the axon tip of the sending neuron and the receiving neuron.