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HistologyTypes of tissuesMuscle tissueMuscle fascicle
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HistologyTypes of tissuesMuscle tissueMuscle fascicle

Muscle fascicle

Author: Danijel Tosovic, PhD • Reviewer: Dimitrios Mytilinaios, MD, PhD
Last reviewed: March 07, 2024
Reading time: 1 minute

Recommended video: Skeletal muscle tissue [12:25]
This type of tissue is found in skeletal muscles and is responsible for the voluntary movements of bones.
Muscle fascicle
Fasciculus muscularis
1/3
Synonyms: Fascicle of skeletal muscle, Fasciculus muscularis striatus

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):

Skeletal muscle Explore study unit
Muscles and muscle tissue Read article

Sources

All content published on Kenhub is reviewed by medical and anatomy experts. The information we provide is grounded on academic literature and peer-reviewed research. Kenhub does not provide medical advice. You can learn more about our content creation and review standards by reading our content quality guidelines.
  • Moore, K. L., Dalley, A. F., & Agur, A. M. R. (2014). Clinically Oriented Anatomy (7th ed.). Philadelphia, PA: Lippincott Williams & Wilkins.
  • Standring, S. (2016). Gray's Anatomy (41st ed.). Edinburgh: Elsevier Churchill Livingstone.

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