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Muscle Fascicle
Skeletal Muscle

Muscle Fascicle

Fasciculus muscularis

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Quick Facts

A muscle fascicle is a small bundle of muscle fibers (Dorland, 2011).

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A muscle fascicle is a bundle of skeletal muscle fibers running parallel to each other, enveloped by a collagenous sheath called the perimysium.

Key Features/Anatomical Relations

Multiple muscle fascicles collectively make up the skeletal muscle proper and they generally run along the length of the muscle.


The muscle fascicle is made up of groups of muscle fibers bundled together, resulting in greater cumulative strength of the muscle fibers. This facilitates in allowing the fascicle to produce more force during contraction.

List of Clinical Correlates


—Muscular dystrophy

—Neuromuscular disease

—Muscle atrophy



Dorland, W. (2011) Dorland's Illustrated Medical Dictionary. 32nd edn. Philadelphia, USA: Elsevier Saunders.

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