26 - Action Potential

Question 1

What is a membrane potential generally and how is it measured?

Answer 1

Question 2

How is a membrane potential generated? How is it related to ion permeability?

Answer 2

Question 3

Describe the Nernst equation and how it is used in membrane potentials.

Answer 3

Question 4

Answer 4

Question 5

What is the Goldman-Hodgkin-Katz Equation and what is it used for?

Answer 5

Question 6

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Question 7

What is a general overview of an actual potential?

Answer 7

Question 8

What is the resting stage?

Answer 8

Question 9

What is depolarization and repolarization and how is it performed?

Answer 9

Question 10

Describe sodium voltage gated channels.

Answer 10

Question 11

Describe potassium voltage gated channels.

Answer 11

Question 12

Describe the relationship between sodium and potassium voltage gated channels.

Answer 12

Question 13

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Question 14

What is the refractory period?

Answer 14

Question 15

What is the anatomy of a neuron? How does an action potential travel in a neuron?

Answer 15

Question 16

Describe what propogation of an action potential across neurons involves.

Answer 16

Question 17

Describe the concept of passive conductance.

Answer 17

Question 18

Describe the anatomy of a myelinated nerve fiber. What purpose does a myelin sheath serve?

Answer 18

Question 19

Describe the concept of saltatory conduction and how it applies to the efficiency of myelin sheaths.

Answer 19

Question 20

What happens when a neuron becomes demyelinated? What are the consequences of such a thing?

Answer 20

Question 21

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Question 22

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Question 23

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Question 24

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Question 25

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Question 26

Answer 26

A, C

Question 27

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Question 28

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Question 29

Answer 29