Electrochemical Basis of Behavior Flashcards Preview

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Flashcards in Electrochemical Basis of Behavior Deck (19):
0

This is the difference in charge on the two sides of the membrane of an axon.

Polarization

1

This is a recording device that connects to an OSCILLOSCOPE.

Millivoltmeter

2

These ions are found OUTSIDE of a neuron during RESTING POTENTIAL.

Na+ (Sodium)
Cl- (Chloride)

3

These ions are found INSIDE of the membrane of a neuron during RESTING POTENTIAL.

Anions (large negative protein)
K+ (potassium)

4

RESTING POTENTIAL of a neuron is regulated by ___________.

Sodium Pump

5

The POSITIVE charge OUTSIDE of the neuron is due to ___________.

Sodium

6

The NEGATIVE charge INSIDE of the neuron is due to _____________.

Anions

7

During ACTION POTENTIAL, SODIUM ions___________ and POTASSIUM ions__________.

Sodium RUSHES IN
Potassium is ALREADY in

8

During ACTION POTENTIAL, the ANIONS __________ and the CHLORIDE ions __________.

Anions CANNOT GET OUT
Chloride STAYS OUTSIDE

9

POTASSIUM DIFFUSING out is a(an) ___________ process.

Passive

10

SODIUM and POTASSIUM ions being PULLED into the cell is a(an) ___________ process.

Active

11

DEPOLARIZATION has a recording of ___mV to ___mV.

-70 to 0

*See illustration in notes*

12

REVERSE POLARIZATION has a recording of ___mV to ___mV.

0 to +30

*See illustration in notes*

13

This is the INCREASE in EXCITABILITY as a neuron moves TOWARD the THRESHOLD.

Period of Latent Addition

*See illustration in notes*

14

NO STIMULUS no matter how great is CAPABLE of ELICITING A RESPONSE.

Absolute Refractory Period

*See illustration in notes*

15

This occurs when a STRONGER THAN NORMAL stimulus is CAPABLE of ELICITING a RESPONSE.

Relative Refractory Period

*See illustration in notes*

16

True or False: CONDUCTION of a NERVE IMPULSE along an AXON is uni-directional.

FALSE, conduction is NONDIRECTIONAL

17

This states that an AXON FIRES COMPLETELY or NOT AT ALL.

All or Nothing Law

18

This is a PROPAGATION of an ACTION POTENTIAL from node to node of MYELINATED FIBERS.

Saltatory Conduction