Lateral raphespinal tract

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Lateral raphespinal tract
Latin	tractus raphespinalis lateralis

The lateral raphespinal tract is a tract in the spinal cord.

Anatomy of torso (primarily): the spinal cord (TA 14.1.02, GA 9.749)

External, dorsal

I–VI: Posterior horn	I: Marginal nucleus · II: Substantia gelatinosa of Rolando · III+IV: Nucleus proprius · Spinal lamina V · Spinal lamina VI

VII: Lateral horn	Intermediolateral nucleus · Posterior thoracic nucleus

VIII–IX: Anterior horn	Interneuron · Alpha motor neuron (Onuf's nucleus)

X: Other	Central gelatinous substance · Gray commissure Central canal · Terminal ventricle

somatic/ ascending (blue)	Posterior/PCML: touch: Gracile · Cuneate Lateral: proprioception: Spinocerebellar (Dorsal, Ventral) · pain/temp: Spinothalamic (Lateral, Anterior) · Posterolateral (Lissauer) · Spinotectal Spinoreticular tract · Spino-olivary tract

motor/ descending (red)	Lateral: Corticospinal (Lateral) · Ep (Rubrospinal, Olivospinal) Anterior: Corticospinal (Anterior) · Ep (Vestibulospinal, Reticulospinal, Tectospinal)

both	Anterior white commissure

External, ventral

External, general

anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug (N1A/2AB/C/3/4/7A/B/C/D)

Dorsal

Surface

afferent:	GVA: VII,IX,X: Solitary/tract/Dorsal respiratory group SVA: Gustatory nucleus GSA: VIII-v Lateral Medial Inferior

efferent:	GSE: XII GVE: IX,X,XI: Ambiguus SVE: X: Dorsal IX: Inferior salivatory nucleus

Grey: other

White: Sensory/ascending

White: Motor/descending

Ventral

White: Motor/descending	Motor decussation Olivocerebellar tract Rubro-olivary tract

Grey matter	Ventral respiratory group Arcuate nucleus of medulla Inferior olivary nucleus Rostral ventromedial medulla

Surface	Anterior median fissure Anterolateral sulcus Olive Pyramid

Grey: Raphe/
reticular

anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug (N1A/2AB/C/3/4/7A/B/C/D)

Dopaminergic pathways	Mesocortical pathway: Ventral tegmental area → Frontal cortex Mesolimbic pathway: Ventral tegmental area → Nucleus accumbens Nigrostriatal pathway: Pars compacta → Striatum Tuberoinfundibular pathway: Hypothalamus → Pituitary gland

Norepinephrine	Locus coeruleus

Serotonin pathways	Raphe nuclei Anterior raphespinal tract Lateral raphespinal tract

Aspartate	Climbing fibers

GABA	Globus pallidus

Glycine	Renshaw cells

Glutamate	Thalamus Subthalamic nucleus Globus pallidus

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