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Exam 1 Flash Cards
Chapters 1 & 2
14
Psychology
Undergraduate 2
02/07/2013

Additional Psychology Flashcards

 


 

Cards

Term
Neuron
Definition

The basic cell that makes up the nervous system and that receives and sends messages within that system.

Term

Dendrites

 

Definition

Branchlike structures that receive messages from other neurons.

Term
Axon
Definition
[image]
Term
Glial Cells
Definition

Cells that produce myelin for neurons.

Term

Myelin

Definition

Fatty substances that coat the axons of neurons that insulate, protect, and speed up the neural impulse.

Term
Resting Potential
Definition

The state of the neuron when not firing a neural impulse. (Inside of cell is primarily negative - - - )

Term
Action Potential 
Definition

The release of the neuron impulse.

(The inside of the cell is now positive + + +)

Term
"All-or-None" Firing
Definition

Neuron either fires completely or does not fire at all.

Term
Synapse
Definition

gap between the axon tip of the sending neuron and the dendrite or cell body of the receiving cell.

  • Inhibitory synapses cause receiving cells to stop firing
  • Excitatory synapses cause receiving cells to fire
Term
Agonists
Definition

Mimic or enhance the effects of a neurotransmitter on the receptor sites.

Term
Antagonists
Definition

Block or reduce a cell's response to the action of other neurotransmitters.

Term
Reuptake
Definition

Neurotransmitters are taken back into the synaptic vesicles.

Term
Scientific Method
Definition

Steps of the Scientific Method:

1. Ask a Question

2. Form a Hypothesis

3. Test the Hypothesis

4. Draw Conclusions

5. Report Your Results

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