ANATOMY
MUSCULOSKELETAL AND SOFT TISSUE
Question
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Muscles that move an arm or leg contract and relax. These muscles are called ____ muscles.
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cardiac
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skeletal
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connective
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smooth
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Explanation:
Detailed explanation-1: -The Sliding Filament Model of Muscle Contraction When signaled by a motor neuron, a skeletal muscle fiber contracts as the thin filaments are pulled and then slide past the thick filaments within the fiber’s sarcomeres. This process is known as the sliding filament model of muscle contraction (Figure 6).
Detailed explanation-2: -Skeletal muscle works in conjunction with the bones of the skeleton to create body movements. Additionally, it is also associated with the diaphragmatic, esophageal, and eye muscles. Thus, skeletal muscle serves a variety of purposes, including moving of the body, breathing, and swallowing.
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