Which of the Following Statements Regarding Whole-Muscle Contraction Is True

question 73

Multiple Choice

Which of the following statements regarding whole-muscle contraction is true?

• A)The order of recruitment of motor units in a muscle is such that the last units recruited are the first to experience fatigue
• B)The order of recruitment of motor units in a muscle is such that the first units recruited generate the most tension
• C)Motor units whose motor neurons have small-diameter cell bodies contract first, followed by motor units with larger-diameter motor neurons
• D)Both the order of recruitment of motor units in a muscle is such that the last units recruited are the first to experience fatigue and the order of recruitment of motor units in a muscle is such that the first units recruited generate the most tension are true
• E)Both the order of recruitment of motor units in a muscle is such that the last units recruited are the first to experience fatigue and motor units whose motor neurons have small-diameter cell bodies contract first, followed by motor units with larger-diameter motor neurons are true

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