During a grand mal seizure,loss of consciousness and a brief period (10 to 20 seconds)of generalized rigidity of muscles during which the patient may arch his back and emit a strange sound as air is expelled from the lungs is phase:

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During phase 2 of a grand mal seizure,the patient loses consciousness and experiences a brief period (10 to 20 seconds)of generalized rigidity of muscles.The patient may arch his back and emit a strange sound as air is expelled from the lungs.
During phase 1 of a grand mal seizure,the patient may experience a warning aura such as a peculiar smell,taste,vision,or sound.This can last several seconds or several hours.
During phase 3,muscle contractions may be violent or barely detectable.The respiratory,cardiovascular,and central nervous systems are stimulated simultaneously.The patient is in danger of self-injury.
During phase 4,muscle contraction ends,leaving the affected systems "depressed."

During a Grand Mal Seizure,loss of Consciousness and a Brief