Which of the following describes complete tetanus of a muscle?
1.A single stimulus is delivered, and the muscle contacts and relaxes.
2.Stimuli are delivered frequently, and the contraction force increases with little relaxation.
3.A smooth continuous contraction without any evidence of relaxation because stimulus is
delivered rapidly and continually.
4.A weak stimulus is delivered, and the muscle does not contract.
5.A strong stimulus is delivered, but the muscle is fatigued and will not contract.