Action Potentials and Neurotransmission

Question 1

Element with higher concentration outside of cell

Answer 1

Sodium

Question 2

Element with higher concentration inside of cell

Answer 2

Potassium

Question 3

Amount of sodium ejected in cycle of 1 ATP

Answer 3

3

Question 4

Amount of potassium pulled inside in cycle of 1 ATP

Answer 4

2

Question 5

Upwards voltage from -70 (threshold)

Answer 5

Depolarization

Question 6

Downwards voltage

Answer 6

Hyperpolarization or Repolarization

Question 7

Downwards voltage that goes below threshold

Answer 7

Afterhyperpolarization

Question 8

A poison found in pufferfish that blocks Sodium channels

Answer 8

TTX

Question 9

Where action potentials occur

Answer 9

Axon hitlock

Question 10

Protective material around axons that block action potentials, causing them to “jump”

Answer 10

myelin

Question 11

Gaps along axon with no myelin

Answer 11

Nodes of Ranvier

Question 12

The act of action potentials jumping

Answer 12

Salvatori Conduction

Question 13

Disease characterized by the degradation of myelin

Answer 13

Multiple sclerosis

Question 14

Space between presynaptic and post synaptic neurons

Answer 14

Synaptic cleft