Action Potentials Move Faster in Myelinated Nerve Fibers Because

question 59

Multiple Choice

Action potentials move faster in myelinated nerve fibers because

• A) sodium ions can leap from node to node.
• B) dendrites do not need to connect directly to axons.
• C) sodium ions can pass through myelin faster than they do across the plasma membrane of a neuron.
• D) action potentials leap from node to node.

Recognize the role and function of myoglobin in muscle tissues.

Describe the physiological phenomena related to oxygen consumption during and after exercise.

Differentiate between the characteristics and functions of various skeletal muscle fiber types.

Understand the structure and function of muscular components such as the triad and myofilaments.

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