myocyte

(noun)

A muscle cell.

Related Terms

  • myocytes
  • myofibrils
  • myofilaments
  • vo
  • involunta
  • myosi
  • acti
  • myosin
  • actin
  • striated
  • voluntary
  • involuntary
  • myofilament
  • Sarcoplasm
  • sarcoplasm
  • sarcolemma
  • sarcoplasmic reticulum
  • sarcomere
  • intercalated disc
  • myofibril

Examples of myocyte in the following topics:

  • Skeletal Muscle Fibers

    • Myocytes, sometimes called muscle fibers, form the bulk of muscle tissue.
    • The sarcolemma of myocytes contains numerous invaginations (pits) called transverse tubules which are usually perpendicular to the length of the myocyte.
    • Each myocyte contains multiple nuclei due to their derivation from multiple myoblasts, progenitor cells that give rise to myocytes.
    • These myoblasts asre located to the periphery of the myocyte and flattened so as not to impact myocyte contraction.
    • Each myocyte can contain many thousands of myofibrils.
  • Characteristics of Muscle Tissue

    • Muscle cells, or myocytes, contain myofibrils comprised of actin and myosin myofilaments which slide past each other producing tension that changes the shape of the myocyte.
    • Numerous myocytes make up muscle tissue and the controlled production of tension in these cells can generate significant force.
    • Morphologically skeletal myocytes are elongated and tubular and appear striated with multiple peripheral nuclei.
    • Cardiac myocytes are shorter than skeletal equivalents and contain only one or two centrally located nuclei.
    • Smooth muscle myocytes are spindle shaped with a single centrally located nucleus.
  • Structure and Function of the Muscular System

    • Muscle cells, or myocytes, contain myofibrils comprised of actin and myosin myofilaments which slide past each other producing tension that changes the shape of the myocyte.
    • Numerous myocytes make up muscle tissue and the controlled production of tension in these cells can generate significant force.
    • Morphologically skeletal myocytes are elongated and tubular and appear striated with multiple peripheral nuclei.
    • Cardiac myocytes are shorter than skeletal equivalents and contain only one or two centrally located nuclei.
    • Smooth muscle myocytes are spindle shaped with a single centrally located nucleus.
  • Muscle Development

    • Myocyte Enhance Factors (MEFs) promote myogenesis.
    • A myocyte (also known as a muscle cell or muscle fiber) is the type of cell found in muscle tissue.
    • There are various specialized forms of myocytes: cardiac, skeletal, and smooth muscle cells, with various properties.
    • Cardiac myocytes are responsible for generating the electrical impulses that control the heart rate, among other things.
  • Sliding Filament Model of Contraction

    • However, when multiplied by the number of sarcomeres in a myofibril, myofibrils in a myocyte and myocytes in a muscle, the amount of force and movement generated is significant.
  • Autonomic Interactions

    • Increases heart rate and the contractility of cardiac cells (myocytes), thereby providing a mechanism for the enhanced blood flow to skeletal muscles.
  • Myocardial Thickness and Function

    • Cardiomyocytes are shorter than skeletal myocytes and have fewer nuclei.
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