MUSCULAR SYSTEM (PPT)

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Created by
Ash Mae

Cards (23)

  • MUSCLE
    • An organ capable of contraction and it gets shorter. Approximately consists half of the body mass.
  • VOLUNTARY MUSCLE
    • These are the muscles that can be moved by the free will or conscious thought and are almost always associated with the skeleton system.
  • INVOLUNTARY MUSCLE
    • These are the muscles that cannot be moved by the free will or conscious thought and are often associated with organs that exhibit slow and regular contractions and relaxation - smooth, and cardiac muscle.
  • VOLUNTARY MUSCLE
    • SKELETAL MUSCLE
  • INVOLUNTARY MUSCLE
    • CARDIAC MUSCLE
    • SMOOTH MUSCLE
  • TYPES OF MUSCLE
    1. VOLUNTARY MUSCLE
    2. INVOLUNTARY MUSCLE
  • SKELETAL MUSCLE
    • Largest mass of muscle attached, directly or indirectly via tendons, to bones an moves the skeleton
  • SKELETAL MUSCLE
    • Contractions are short, hence, the force is strong needed for movement; contracts quickly and tires easily.
  • SKELETAL MUSCLE
    • Also known as striated muscles.
  • SMOOTH MUSCLE
    • Made of sheet of cells shaped into lining organs found in internal organs (DT), and blood vessels.
  • SMOOTH MUSCLE
    • Contracts are slow but prolonged.
  • SMOOTH MUSCLE
    • Squeezing and exerting pressure inside the tube it surrounds is important.
  • SMOOTH MUSCLE
    • Also known as non-striated muscles.
  • CARDIAC MUSCLE
    • Found only in heart.
    • Contractions are expressed in the form of heartbeat (electrical impulses are necessary for rhythmic contractions)
    • Involuntary muscles
    • Also striated like muscle cells
  • Humans have over 650
    major muscles in the
    body.
  • Over
    50 of those
    muscles are in your
    face.
  • Muscles are group of
    tissues that make your
    body parts move.
  • It takes 17 muscles to
    smile and over 40 to
    frown.
  • The strongest muscle
    in the body is the
    masseter
    muscle,
    located on each side of
    the mouth.
  • Tongue’s
    interlacing
    layers of muscles allow
    great mobility.
  • Most active muscles
    are those in the eyes.
    In the iris, muscle fiber
    contract and dilate to
    alter pupil size.
  • Muscles work in pairs in either contacting - flexion (shortening) or extending (lengthening).
  • CONTRACTING
    A) EXTENSION
    B) FLEXION