Graded potentials-action potentials in neurons-muscle cell

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Reference no: EM133404338

Questions

1. Explain each of the following terms that are used to describe the membrane potential of a cell:

a. Resting potential

b. Depolarization

c. Hyperpolarization

d. Overshoot

e. Repolarization

7. Compare and contrast graded potentials and action potentials in neurons and muscle cells.

8. List and explain seven unique characteristics of action potentials in excitable cells.

9. Explain the essential role of voltage-gated sodium channels in generation of action potentials in neurons.

10. Describe the changes in sodium and potassium permeability during the different phases of the action potential (e.g., depolarization, repolarization, undershoot).

11. Describe the different "states" of voltage-gated sodium and potassium channels during different phases of the action potential.

12. Compare and contrast action potential conduction in myelinated and unmyelinated axons.

13. Discuss factors that influence action potential conduction velocity.

Reference no: EM133404338

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