Clonic contraction is characterized by which pattern?

Clonic contraction is characterized by which pattern?

• A. Alternate contraction and relaxation in rapid succession
• B. Sustained contraction with no relaxation
• C. Slow rhythmic contractions
• D. Irregular spasms without a pattern

Answer: (A)

Clonic contraction describes rapid, alternating contractions and relaxations of a muscle. These movements appear as quick jerks that repeat in succession, with brief moments of relaxation between each jerk. That pattern matches alternating contraction and relaxation in rapid succession. It’s different from a tonic contraction, which is sustained with no relaxation; from slow rhythmic contractions, which imply a slower, regular tremor; and from irregular spasms without a pattern, which lack the repeatable timing of clonic movements.

Clonic contraction describes rapid, alternating contractions and relaxations of a muscle. These movements appear as quick jerks that repeat in succession, with brief moments of relaxation between each jerk. That pattern matches alternating contraction and relaxation in rapid succession. It’s different from a tonic contraction, which is sustained with no relaxation; from slow rhythmic contractions, which imply a slower, regular tremor; and from irregular spasms without a pattern, which lack the repeatable timing of clonic movements.