Quick Facts
A muscle fascicle is a small bundle of muscle fibers (Dorland, 2011).
Related parts of the anatomy
Structure
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.
Function
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
—Myopathy
—Muscular dystrophy
—Neuromuscular disease
—Muscle atrophy
—Myositis
References
Dorland, W. (2011) Dorland's Illustrated Medical Dictionary. 32nd edn. Philadelphia, USA: Elsevier Saunders.
