Question

All or none law or Bowditchs law states that

• A. the filament that move to shorten a muscle is creative phosphate
• B. ultimate source of energy for muscle contraction is glucose
• C. response of a muscle/nerve to a stimulus is not proportionate to its intensity
• D. None of the above

Answer 1

Answer: (C)

Bowditchs low (all or none low) states that the response of a muscle/nerve to any stimulus is either present in full strength or completely absent. It does not depend upon the intensity of the stimulus provided. At or above the threshold value a muscle fibre always contracts with maximum force irrespective of the strength of the stimulus.