Contraction and relaxation of muscles is called

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• Contraction and relaxation of muscles of oesophagus is called
• Contraction and relaxation of the heart muscles is called
• The rhythmic contraction and relaxation of heart muscles is called
• The alternating contraction and relaxation of intestinal muscles is called
• Contraction and relaxation of the heart muscles is called and respectively
• The rhythmic contraction and relaxation of alimentary canal muscles is called
• The contraction and relaxation of muscles in the food pipe is called
• A slow stretch combined with alternating contraction and relaxation of muscles is called
• One complete cycle of contraction and relaxation of the heart muscles is called
• The rhythmic contraction and relaxation of muscles in the food pipe is called
• What is contraction and relaxation of muscles of the alimentary canal called