Muscle tissues

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Cards (55)

  • MUSCULAR TISSUE
    It is the primary tissue of motion responsible for the
    movement of the different parts of the body.
  • muscle cell nucleus
  • The smooth and skeletal muscle fibers are
    bound together by areolar tissues.
  • The areolar tissues contain blood vessels
    and nerves.
  • The cardiac muscle fibers are bound by
    intercalated disks.
  • smooth muscle cells
  • skeletal muscle cells
  • cardiac muscle cells
  • EPIMYSIUM
    -DENSE IRREGULAR CONNECTIVE
    TISSUE
    -SHEATH THAT SURROUNDS THE ENTIRE
    MUSCLE
  • PERIMYSIUM
    -DENSE IRREGULAR CONNECTIVE
    TISSUE
    -SHEATH THAT SURROUNDS THE
    FASCICLE
  • FASCICLE - BUNDLE OF MUSCLE
    FIBERS
  • ENDOMYSIUM
    -THIN DELICATE LAYER OF RETICULAR
    FIBERS AND SCATTERED FIBROBLAST
    -INNERMOST SHEATH SURROUNDING
    INDIVIDUAL MUSCLE FIBER
  • SARCOLEMMA - MUSCLE PLASMA
    MEMBRANE
  • SARCOPLASM - CYTOPLASM OF A
    MUSCLE FIBER
  • SARCOSTYLE - MYOFIBRILS
  • this is capillary
  • endothelial cell nucleus
  • SARCOMERE
    • The smallest functional unit of striated
    muscle tissue
  • SARCOMERE
    Composed of two main protein filaments
    ✓ Thin actin filament
    ✓ Thick myosin filaments
  • a sarcomere shortens
  • A bands (or Anisotropic bands)
    o "Dark band"
  • A bands (or Anisotropic bands)
    • Contains the whole thick filament (MYOSIN)
  • Isotropic band
    o “Light band”
  • isotropic bands
    o contains only the thin filament (ACTIN)
  • isotropic bands
    o A thin filament lies between the two thick
    filaments.
  • Z disc
    o The area where two actin filaments connect
    and transverse the I bands.
  • H zone
    o Area between the M line and Z disc and this
    zone contains only the myosin
    o Does not contain thin (actin) filaments.
  • H zone
    o The center of the A band
    o No overlap between the thick and the thin
    filaments
  • Staining of Muscles
    o The muscles are acidophilic in staining
    affinity.
  • Types of Muscular Tissue
    Smooth muscle
  • Types of Muscular Tissue
    cardiac muscle cell
  • Types of Muscular Tissue
    striated muscle cell
  • The Smooth Muscle
    These tissues are found in different areas.
    1. Middle of the esophagus
    2. Interior anal sphincter
    3. Wall of the alimentary duct
    4. Urinary and genital tracts
    5. Walls of arteries
    6. Veins and larger lymphatics
    7. Capsule of the spleen
    8. Arrectores pilorum muscles in the skin
    9. Iris and ciliary body of the eye
    10. Areola of mammary gland
    11. Subcutaneous tissue of the scrotu
  • The exterior anal sphincter can be voluntary
    controlled.
  • The interior anal sphincter is not voluntarily
    controlled.
  • The interior anal sphincter is not voluntarily
    controlled.
  • The Arrectores pilorum muscles
    o These are tiny hair erector muscles under the
    skin that cause "goosebumps" when there is
    a stimulus.
  • This muscle can be stimulated by cold
  • ARRECTOR PILIE
    o Bundles of smooth muscle fibers
    o Attached to the deep part of the hair follicles
    o Contraction causes the hair to stand erect
  • Tongue – muscular organ consists of 8
    interwoven striated muscles.