During which of the following sleep stages shows sleep spindles in ECG?
Correct Answer: Stage 2
Description: Ans. B. Stage 2Stage 1 (sleep)presence of theta waves 4-HzStage 2 (sleep)Sleep spindles appears as sinusoidal waves occurring at a frequency of 12-14 Hz. Presence of sleep spindles and K complexes. K complexes are occasional high voltage biphasic waves.stage 3A high-amplitude delta rhythm (0.5-4 Hz) are seen.Stage 4presence of slow waves.
Category:
Physiology
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