Muscle fascicle
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):
Muscle fascicle: want to learn more about it?
Our engaging videos, interactive quizzes, in-depth articles and HD atlas are here to get you top results faster.
What do you prefer to learn with?
“I would honestly say that Kenhub cut my study time in half.”
–
Read more.