Neural Impulses

Question 1

maintain a positive charge on one side of the plasma membrane and a negative charge on the other.

Answer 1

Polarization

Question 2

When opposites are no longer away from each other. (domino effect)

Answer 2

Depolarization

Question 2

A brief electrical charge that travels down an axon and is generated by the movement of positively charged atoms (Na & K)

Answer 2

Action Potential

Question 2

When a neuron is activated all other neurons activate or nothing happens

Answer 2

“All or nothing event”

Question 3

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

Answer 3

Synapse

Question 4

When an action potential reaches the knob-like terminals at an axon’s end it releases a chemical messenger called what

Answer 4

Neurotransmitters

Question 5

This process applies the brakes on neurotransmitter

Answer 5

REUPTAKE

Question 6

After a neuron fires an action potential,
it pauses for a short period (milliseconds to several minutes) to recharge itself to fire again

Answer 6

Refractory Period

Question 7

neurotransmitters released by the pituitary gland and hypothalamus in the brain.

Answer 7

Endorphins

Question 8

always produces a specific action and triggers the receptor to produce a natural response.

Answer 8

agonist

Question 9

block or oppose the natural action or response of a receptor.

Answer 9

antagonist