NEET PG DENTAL EXAM

Detailed explanation-1: -The brain stem, at the base of the brain, communicates with the hypothalamus to control the transitions between wake and sleep. (The brain stem includes structures called the pons, medulla, and midbrain.)

Detailed explanation-2: -Stucynski et al. show that GABAergic neurons in the dorsomedial medulla (dmM) promote REM sleep, in part through projections to the dorsal/median raphe. During NREM sleep, these neurons fluctuate in close synchrony with an infraslow oscillation in the EEG sigma power.

Detailed explanation-3: -Brain chemicals and sleep Nerve cells in the brainstem release neurotransmitters. These include norepinephrine, histamine, and serotonin. Neurotransmitters act on parts of the brain to keep it alert and working well while you are awake. Other nerve cells stop the messages that tell you to stay awake.