FORMATIO RETICULARIS, RETICULAR FORMATION
Ascending reticular activating system (ARAS)
- arousal modul of brainstem for brain cortex
  tr. reticulocorticalis
- indirect connection tr. reticulo-thalamo-corticalis

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FORMATIO RETICULARIS, RETICULAR FORMATION
From: M.J.T. FitzGerald and J. F. Curran 2002. Clinical Neuroanatomy, W. B. Sauders

 paramedian (medial) group :
- ncl. gigantocellularis - large neurons with long axons
- main path to hypothalamus and thalamus
  projection to spinal cord tr. reticulospinalis
- adrenergic (noradrenergic and adrenergic) synapses
- locus coeruleus – noradrenergic synapses
Function: influence of peripheral ANS, level of arousal, motor
control of axial and proximal muscles of extremities
Nuclear groups: rapheal (median) group
paramedian (medial) group
lateral group
rapheal group : - ncl. raphe magnus
      - serotonin (inhibition), tr. raphespinalis
Function: modulation of afferentation (pain)

main path to hypothalamus and thalamus through ttc

lateral group: - with short ascendant and descendant axons
  terminating in medial reticular group
  Function: „afferentation“ of FR
Other function of FR:
sleeping generator
pattern generator of
- conjugate movements of eyes
- rhythmic chewing movements
- swallowing, vomiting, coughing, sneezing, micturition,
- respiration, heart rhythm

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FORMATIO RETICULARIS, RETICULAR FORMATION
From: M.J.T. FitzGerald and J. F. Curran 2002. Clinical Neuroanatomy, W. B. Sauders

BG7



BG11



Serotoninergic
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From: M.J.T. FitzGerald and J. F. Curran 2002. Clinical Neuroanatomy, W. B. Sauders

Noradrenergic
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From: M.J.T. FitzGerald and J. F. Curran 2002. Clinical Neuroanatomy, W. B. Sauders

AChKortex
Acetylcholin


Dopaminergic
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From: M.J.T. FitzGerald and J. F. Curran 2002. Clinical Neuroanatomy, W. B. Sauders