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The reticular formation is divided into three columns: raphe nuclei (median), gigantocellular reticular nuclei (medial zone), and parvocellular reticular nuclei (lateral zone). The raphe nuclei are the place of synthesis of the neurotransmitter serotonin , which plays an important role in mood regulation.
The lateral reticular nucleus, of the lateral funiculus, can be divided into three subnuclei, the parvocellular, magnocellular and the subtrigeminal.As is typical of the reticular formation, none of these are very distinct subnuclei, but rather blurred distinctions between cell types and location.
The neurons of the lateral reticular formation are very important for reflexes and the mediation of posture. It has been shown in cats that electrical stimulation of the reticular formation can make a standing cat lie down. Also, stimulation of the cat in an alternative spot can make a lying cat stand.
The paramedian pontine reticular formation (PPRF) is a subset of neurons of the oral and caudal pontine reticular nuclei. With the abducens nucleus it makes up the horizontal gaze centre . [ 1 ] It is situated in the pons adjacent to the abducens nucleus . [ 2 ]
The tegmentum area includes various different structures, such as the rostral end of the reticular formation, several nuclei controlling eye movements, the periaqueductal gray matter, the red nucleus, the substantia nigra, and the ventral tegmental area. [3] The tegmentum is the location of several cranial nerve nuclei. The nuclei of CN III and ...
It is a part of the reticular activating system in the reticular formation. [ 3 ] The locus coeruleus, which in Latin means "blue spot", is the principal site for brain synthesis of norepinephrine (noradrenaline).
The tract is situated in the central portion of the reticular formation. [1] ... In humans it is very small and runs ventral to the lateral corticospinal tract. [2]
reticular formation (mediates autonomic responses) [3] [5] parasympathetic preganglionic neurons (for autonomic responses) [3] central nucleus of the amygdala [10] parabrachial area [10] locus coeruleus [10] dorsal raphe nucleus [10] solitariospinal tract → upper levels of spinal cord [5] other visceral motor or respiratory centers [10]