What is a fascicle?

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Study for the Anatomy and Physiology Muscular System Test. Prepare with flashcards and multiple choice questions; each question provides hints and explanations. Get ready to excel in your exam!

Multiple Choice

What is a fascicle?

Explanation:
The term fascicle refers to a bundle of muscle fibers. In skeletal muscle, fibers (muscle cells) are grouped together into these bundles, and each bundle is wrapped by connective tissue called the perimysium. Several fascicles then come together to form the whole muscle, which is wrapped by the epimysium. So a fascicle is the intermediate organization: multiple muscle fibers bound as a unit. This differs from a muscle cell, which is a single muscle fiber inside the fascicle; a nerve fiber, which is part of the nervous system, not muscle tissue; and a tendon, which is the connective tissue that attaches muscle to bone.

The term fascicle refers to a bundle of muscle fibers. In skeletal muscle, fibers (muscle cells) are grouped together into these bundles, and each bundle is wrapped by connective tissue called the perimysium. Several fascicles then come together to form the whole muscle, which is wrapped by the epimysium. So a fascicle is the intermediate organization: multiple muscle fibers bound as a unit.

This differs from a muscle cell, which is a single muscle fiber inside the fascicle; a nerve fiber, which is part of the nervous system, not muscle tissue; and a tendon, which is the connective tissue that attaches muscle to bone.

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