Ascending and descending spinal tracts
Blood brain barrier
Nervous system anatomy and physiology
Neuron action potential
Sympathetic nervous system
Parasympathetic nervous system
Enteric nervous system
Basal ganglia: Direct and indirect pathway of movement
Body temperature regulation (thermoregulation)
Hunger and satiety
Muscle spindles and golgi tendon organs
Pyramidal and extrapyramidal tracts
Sensory receptor function
Sleep is a natural state of rest for the body and mind, characterized by a reduction in consciousness and muscle activity, relatively inhibited sensory activity, inhibition of nearly all voluntary muscles, and reduced interactions with surroundings. Sleep is an essential part of maintaining good health and well-being and plays a key role in physical, mental, and emotional processes, such as memory consolidation, hormone regulation, and immune function. Mammals sleep occurs in repeating periods, in which the body alternates between two highly distinct modes known as non-REM ( Rapid Eye Movement) and REM sleep. Most adults need 7-8 hours of sleep per night to function optimally.
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