nounmasculinepl: sarcomeres
sarcômero
1. The basic contractile unit of a striated muscle fiber, bounded by Z-disks and containing thick and thin filaments that interact to produce muscle contraction
The sarcomere is the functional unit responsible for muscle contraction in skeletal and cardiac muscles.
O sarcômero é a unidade funcional responsável pela contração muscular nos músculos esqueléticos e cardíacos.
2. The region between two Z-lines (Z-disks) in a myofibril where overlapping thick filaments (myosin) and thin filaments (actin) interact
Under an electron microscope, you can observe the distinct bands and zones within each sarcomere.
Sob microscópio eletrônico, você pode observar as faixas e zonas distintas dentro de cada sarcômero.
This is a specialized anatomical and physiological term commonly used in medical, biological, and sports science education in both Brazil and the United States. It is fundamental to understanding muscle physiology and is taught in anatomy courses at universities and medical schools worldwide.
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