Ring of Muscle That Controls the Opening of a Tubular

question 49

Multiple Choice

ring of muscle that controls the opening of a tubular organ

• A)Z line
• B)ATP
• C)mitochondria
• D)actin
• E)sarcomeres
• F)phosphate group
• G)myofibrils
• H)smooth muscle
• I)thick filaments
• J)myosin
• K)Sphincter

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