Reticular Activating
system, EEG, Sleep and
Arousal
Objectives
to describe major divison and functions of the reticular
system
understand the basis of generation of the EEG
to know various waves in EEG and understand the use of EEG
sleep
disorders of sleep
Reticular formation
group of interlacing
network of neurons that
occupy the midventral
portions of medulla and
midbrain
originate in upper
brainstem and protect
through synaptic relays in
the rostral intralaminar
thalamic nuclei to the
cerebral cortex
Reticular Activating system, EEG, Sleep and Arousal 1
, 🧠 gamma lower motor neurons play a role in muscle tone
the reticular formation has afferent and efferent connections
afferent connections efferent connections
the reticular formation plays the primary role in sleep. it is
considered the main switch of the cerebral cortex
if the reticular formation is activated then you will be
awake. if they reticular formation is deactivated then you
will sleep
Physiological divisons of the reticular system
ascending reticular system
Reticular Activating system, EEG, Sleep and Arousal 2
system, EEG, Sleep and
Arousal
Objectives
to describe major divison and functions of the reticular
system
understand the basis of generation of the EEG
to know various waves in EEG and understand the use of EEG
sleep
disorders of sleep
Reticular formation
group of interlacing
network of neurons that
occupy the midventral
portions of medulla and
midbrain
originate in upper
brainstem and protect
through synaptic relays in
the rostral intralaminar
thalamic nuclei to the
cerebral cortex
Reticular Activating system, EEG, Sleep and Arousal 1
, 🧠 gamma lower motor neurons play a role in muscle tone
the reticular formation has afferent and efferent connections
afferent connections efferent connections
the reticular formation plays the primary role in sleep. it is
considered the main switch of the cerebral cortex
if the reticular formation is activated then you will be
awake. if they reticular formation is deactivated then you
will sleep
Physiological divisons of the reticular system
ascending reticular system
Reticular Activating system, EEG, Sleep and Arousal 2
