Myofibril is called a long filamentous organelle found within muscle cells that has a banded appearance.
The myofibril consists of thick and thin filaments that form a pattern of striations, with thin filaments of actin in opposite directions that are joined by actin dimers.
- Each myofibril has a banded appearance and is located within the striated muscle fiber, together with the mitochondria and the sarcolemma.
- The molecular and cellular mechanisms and processes that explain muscle contraction in skeletal muscle occur in the myofibril sarcomere.
Therefore, we can conclude that the myofibrils are groups of thick and thin filaments that collaborate in muscle contraction.
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