Reticular Formation Anatomy
What is reticular formation-✅ neuronal network, making tracts with
polysynaptic connections, in brainstem
✅
Reticular formation - function- muscle motor, somatic and visceral
sensation, autonomic, endocrine, rhythms and consciousness
Lateral zone of nuclear groups- ✅lateral third of tegmentum (medulla
oblongata and pons), parvicellular
Intermediate zone of nuclear groups- ✅ middle third of brainstem,
magnocellular
Median zone of nuclear groups - location- ✅ in median and paramedian of
brainstem
Periqueductal and periventricular nuclei - location-✅ around aqueduct and
4th ventricle
Role of non-specific thalamic nuclei- ✅ cortical diffuse projections of info
via RAS (reticular activating system)
Intralaminary nuclei-✅ in intermedullary lamina of thalamus, connects w/
limbic areas and reticular formation, makes RAS
Midline/paraventricular nuclei- ✅ thirdventricle, connects limbic and
visceral functions
Reticular thalamic nucleus- ✅ in external medullary lamina, selective
attention and projection monitoring function
Reciprocal connections of reticular formation with CNS makes :- ✅
self-control circuits/nervous impulse amplification systems
What is reticular formation-✅ neuronal network, making tracts with
polysynaptic connections, in brainstem
✅
Reticular formation - function- muscle motor, somatic and visceral
sensation, autonomic, endocrine, rhythms and consciousness
Lateral zone of nuclear groups- ✅lateral third of tegmentum (medulla
oblongata and pons), parvicellular
Intermediate zone of nuclear groups- ✅ middle third of brainstem,
magnocellular
Median zone of nuclear groups - location- ✅ in median and paramedian of
brainstem
Periqueductal and periventricular nuclei - location-✅ around aqueduct and
4th ventricle
Role of non-specific thalamic nuclei- ✅ cortical diffuse projections of info
via RAS (reticular activating system)
Intralaminary nuclei-✅ in intermedullary lamina of thalamus, connects w/
limbic areas and reticular formation, makes RAS
Midline/paraventricular nuclei- ✅ thirdventricle, connects limbic and
visceral functions
Reticular thalamic nucleus- ✅ in external medullary lamina, selective
attention and projection monitoring function
Reciprocal connections of reticular formation with CNS makes :- ✅
self-control circuits/nervous impulse amplification systems
