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Muscle fascicle

This type of tissue is found in skeletal muscles and is responsible for the voluntary movements of bones.

A muscle fascicle is a group of muscle cells (fibers) that are grouped together in parallel within a connective tissue sheath called the perimysium. A whole muscle belly is then composed of all of the muscle fascicles grouped together by an outer layer of connective tissue called the epimysium

The fascicles of skeletal muscles are macroscopically visible and based on their orientation, skeletal muscles can be arranged into four basic structural patterns: circular, parallel, convergent, and pennate. This difference in fascicular arrangement contributes to the functional capabilities of skeletal muscles, i.e. what types of movements and how much force the muscle can produce, as well as its range of motion.

Terminology English: Muscle fascicle
Latin: Fasciculus muscularis
Definition A group of muscle fibers enveloped by perimysium

Learn more about the structure of skeletal muscles with this study unit (and article):

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