Jeff Is Holding His Arm Out to Support a Heavy

question 81

Multiple Choice

Jeff is holding his arm out to support a heavy book. After a while of maintaining the contraction, he is no longer able to exert any muscle force. This is a result of which phenomenon?

• A) glycogenolysis
• B) muscle fatigue
• C) summation
• D) aerobic respiration

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Definitions:

Inner Ear

Part of the ear that contains the sensory organs for hearing and balance; contains the bony and membranous labyrinth.

Oscillation

A repetitive variation or fluctuation, typically in time, of a system about a central value or between two or more different states.

Eyes

Organs of the visual system that allow one to perceive light and convert it into electrochemical signals for interpretation by the brain.

Palpebral Conjunctiva

Conjunctiva that covers the inner surface of the eyelids.