I in light band of muscle fibril stands for

  1. Isotropic
  2. Isolated
  3. Innervated
  4. Inosonic
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A in dark band of muscle fibril stands for

  1. Anisotropic
  2. Animated
  3. Ancient
  4. Annulated
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Which of the following is not a correct match?

  1. Light band - I band
  2. Dark band- H band
  3. Light band- Actin
  4. Dark band- Myosin
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Actin and Myosin in muscle fibril are arranged

  1. Parallel to each other and perpendicular to the longitudinal axis of the myofibrils
  2. Perpendicular to each other and parallel to the longitudinal axis of the myofibrils
  3. Parallel to each other and parallel to the longitudinal axis of the myofibrils
  4. Perpendicular to each other perpendicular to the longitudinal axis of the myofibrils
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Which of the following is/are attributed with Actin filament?

  1. Thin filament
  2. Light bands
  3. Isotropic bands
  4. all of these
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Which of the following is not true regarding Z line?

  1. Made up of elastic fibres
  2. Present in centre of each I band
  3. It bisects the I band
  4. Thin Filaments are superficially touching to Z line.
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Which of the following is not true regarding M line?

  1. Thin membrane
  2. Fibrous
  3. Holds thick filament of A band
  4. Keeps the Actin filament in centre
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Sarcomere is

  1. Functional unit of contraction
  2. Portion between two successive Z lines
  3. A part of myofibrils
  4. All of these
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H zone is not

  1. Central portion of thin filament.
  2. Central portion of thick filament
  3. Present in resting state
  4. Both A and C
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The Central portion of thick filament is not overlapped by thin filament during…….. and is known as

  1. Motion, Z line
  2. Motion, H zone
  3. Resting State, H zone
  4. Resting state, Z line
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