K - complex and sleep spindles are seen in which stage of sleep
Ans. (c) Stage 2 NREM(Ref: Ganong, 25th ed/p.273)Stage 2 NREMWaves with frequency 12-14Hz called sleep spindles seenhigh voltage biphasic waves called K complexes also seen
REM
Stage 1 NREM
Stage 2 NREM
Stage 3 NREM
Nervous System