sarcomere

American  

[sahr-kuh-meer] / ˈsɑr kəˌmɪər /

noun

Biology.

1. any of the segments of myofibril in striated muscle fibers.

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sarcomere British  

/ ˈsɑːkəʊˌmɪə /

noun

1. any of the units that together comprise skeletal muscle

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sarcomere Scientific  

/ sär′kə-mîr′ /

1. 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.

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Etymology

Origin of sarcomere

First recorded in 1890–95; sarco- + -mere

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Example Sentences

See Examples For:

sarcomere

This suggests that these genetic variants may impact the sarcomere, the basic unit of heart muscle, influencing its structure and function.

From Science Daily ● Jan. 13, 2024

In their current study the scientists produced the first high-resolution image of the cardiac thick filament spanning across several regions in the sarcomere.

From Science Daily ● Nov. 1, 2023

At the core of this vital organ, intricate processes occur when it contracts, where thick and thin protein-filaments interact within the sarcomere, the fundamental building block of both skeletal and heart muscle cells.

From Science Daily ● Nov. 1, 2023

One sarcomere is the space between two consecutive Z discs and contains one entire A band and two halves of an I band, one on either side of the A band.

From Textbooks ● Jun. 9, 2022

The thick and thin filaments alternate with each other in a structure called a sarcomere.

From Textbooks ● Apr. 25, 2013

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