Tecido Muscular en Histoloxía
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Questions and Answers

Cal destas opcións describe mellor a función do tecido muscular?

  • Proporciona soporte estrutural ao organismo.
  • Protexe os órganos internos contra danos.
  • Almacena nutrientes e enerxía.
  • Realiza movementos e contraccións do corpo. (correct)
  • Que tipo de tecido muscular é responsable dos movementos involuntarios?

  • Tecido muscular esquelético.
  • Tecido muscular cardíaco.
  • Tecido muscular liso. (correct)
  • Tecido muscular estriado.
  • Que característica é exclusiva do tecido muscular cardíaco?

  • Ten un control voluntario.
  • Está en contacto directo co sistema nervioso central.
  • Ten unións especializadas chamadas discos intercalados. (correct)
  • Ten células que se dividen rapidamente.
  • Cal é a principal proteína que permite a contracción dos músculos esqueléticos?

    <p>Miosina.</p> Signup and view all the answers

    Que tipo de tecido muscular presenta unha estrutura estriada?

    <p>Ambos B e C.</p> Signup and view all the answers

    Study Notes

    Muscle Tissue Histology

    • Muscle tissue is divided into three main types: skeletal, cardiac, and smooth muscle.
    • Skeletal muscle is striated and under voluntary control, primarily responsible for movement and posture.
    • Cardiac muscle is involuntary and striated, found exclusively in the heart, responsible for pumping blood.
    • Smooth muscle is non-striated and involuntary, located in walls of hollow organs such as blood vessels and the gastrointestinal tract.
    • Muscle fibers are elongated cells known as myocytes, capable of contraction.
    • Each muscle type has unique histological features that distinguish them:
      • Skeletal muscle fibers are multi-nucleated and contain organized sarcomeres.
      • Cardiac muscle fibers are typically single-nucleated with intercalated discs for communication between cells.
      • Smooth muscle cells are spindle-shaped with a single nucleus and lack striations.
    • Muscle tissue plays crucial roles in movement, posture maintenance, and vital organ functions, including the heart and digestive tract.
    • Histological analysis involves staining techniques to enhance visualization of structures, aiding in diagnosis of muscle disorders.

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    Description

    Este cuestionario explora as características do tecido muscular a partir dunha perspectiva histolóxica. Aprofundaremos nos tipos de músculo, a súa estrutura e funcións. É ideal para estudantes de bioloxía e ciencias da saúde que desexen revisar os seus coñecementos sobre este tema fundamental.

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