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sarcomere
[ sahr-kuh-meer ]
noun
- any of the segments of myofibril in striated muscle fibers.
sarcomere
/ ˈɑːəʊˌɪə /
noun
- any of the units that together comprise skeletal muscle
sarcomere
/ ä′ə-î′ /
- The contractile unit of a skeletal muscle fiber. Sarcomeres are divided into bands of filaments made of actin or myosin. During muscle contraction, the filaments slide over each other to cause shortening of the sarcomere.
51Թ History and Origins
Origin of sarcomere1
Example Sentences
This suggests that these genetic variants may impact the sarcomere, the basic unit of heart muscle, influencing its structure and function.
By expressing RBFox1 in immature human stem cell-derived heart cells, the researchers saw enhancements in key indicators of maturation, including cell size, sarcomere structure, contraction, calcium handling and oxygen usage.
Skeletal and heart muscles contract upon the interaction of two types of parallel protein filaments in the sarcomere: thin and thick.
Further analyses showed RBFox1 regulated splicing of RNA transcripts linked to heart cell contraction and sarcomere components.
The sarcomere is subdivided in several regions, called zones and bands, in which these filaments are arranged in different ways.
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