Which Conducts an Action Potential Faster and Why

question 50

Multiple Choice

Which conducts an action potential faster and why?

• A) myelinated fibers; the action potential moves through the myelin which allows it to travel faster
• B) myelinated fibers; the action potential jumps from one node of Ranvier to another
• C) unmyelinated fibers; the absence of myelin allows the action potential to travel faster
• D) unmyelinated fibers; the action potential jumps from one node of Ranvier to another
• E) unmyelinated fibers; the ions can move in and out of the cell faster without the myelin coating

Be familiar with the major muscle groups and their functions.

Understand principles of muscle recruitment during physical activities.

Know the functions of muscles in the human body and related terminology.

Identify common conditions affecting muscles and their treatments.

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Definitions:

Eutectic Alloy

A mixture of two or more metals that solidifies at a single temperature, the lowest at which the mixture can remain fully solid, forming a homogeneous crystal structure.

Heater Barrel Element

A heating component used in machines such as injection molding machines, responsible for heating the barrel in which plastic is melted.

Liquid State

A phase of matter characterized by a definite volume but no definite shape, assuming the shape of its container.

Dropout Current

The minimum current at which a relay, contactor, or coil will de-energize, allowing its contacts to return to their default state.