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muscle fibre

/ˈmʌs.əl ˌfaɪ.bər/

Tradução: Célula alongada e especializada do tecido muscular, formada por miofibrilas, responsável pela contração e pelo movimento do corpo. Também designa cada uma das unidades que compõem um músculo.

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phrase

/ˈmʌs.əl ˌfaɪ.bər/C1formalmedical
  • ptCélula alongada e especializada do tecido muscular, formada por miofibrilas, responsável pela contração e pelo movimento do corpo. Também designa cada uma das unidades que compõem um músculo.

A single cell of muscle tissue, composed of myofibrils and responsible for contraction and movement in the body.

  1. Skeletal muscle cellB2formal

    A long, cylindrical cell that makes up skeletal muscle tissue, responsible for voluntary movement.

    ptFibra muscular

    • Skeletal muscle fibres are multinucleated and striated.
    • Regular exercise increases the size of muscle fibres.
    • The contraction of a muscle fibre is triggered by a nerve impulse.
  2. Structural unit of muscleB2formal

    The basic structural and functional unit of any muscle tissue, including cardiac and smooth muscle.

    ptUnidade estrutural do músculo

    • Cardiac muscle fibres are interconnected by intercalated discs.
    • Smooth muscle fibres are spindle-shaped and lack striations.
    • Damage to muscle fibres can result from intense physical activity.