Glossary Term
Sarcomere
A segment of a myofibril (muscle cell) from one Z disk to the next. This is the smallest functional unit of a muscle cell. A muscle shortens because all of the individual sarcomeres shorten, pulling Z disks closer to one another. Example: A sarcomere is the smallest functional unit of a muscle cell, discussed when teaching contractile proteins, the sliding filament theory and length/tension relationships.
Sarcomere: A segment of a myofibril (muscle cell) from one Z disk to the next. This is the smallest functional unit of a muscle cell. A muscle shortens because all of the individual sarcomeres shorten, pulling Z disks closer to one another. Example: A sarcomere is the smallest functional unit of a muscle cell, discussed when teaching contractile proteins, the sliding filament theory and length/tension relationships.
- Saladin, K. (2014). Anatomy & physiology: The unity of form and function. McGraw-Hill Higher Education, New York. ISBN: 9780073403717
Image: By User:Sameerb - en:WP; Author User:Sameerb in English WP, Copyrighted free use, https://commons.wikimedia.org/w/index.php?curid=764619
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Synonyms
- Muscle cell unit
- Myofibril segment
- Z disk to Z disk unit
- Sarcomere