Hypoglossal trigone

From Wikipedia, the free encyclopedia

Brain: Hypoglossal trigone
Rhomboid fossa. (Trigonum hypoglossi labeled at center left.)
Human caudal brainstem posterior view description (Trigonum nervi hypoglossi is #6)
Latin	trigonum nervi hypoglossi
Gray's	p.779
NeuroNames	hier-632

In the upper part of the medulla oblongata, the hypoglossal nucleus approaches the rhomboid fossa, where it lies close to the middle line, under an eminence named the hypoglossal trigone.

Additional images

This article incorporates text from a public domain edition of Gray's Anatomy.

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)

Roof (dorsal)

rostral:	Superior medullary velum (Frenulum)

caudal:	Inferior medullary velum Taenia of fourth ventricle

Floor/rhomboid fossa (ventral)

rostral (pons):	Facial colliculus Locus coeruleus

caudal (medulla}:	Vagal trigone Hypoglossal trigone Area postrema Obex

Medial eminence Sulcus limitans

Apertures

Other

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)

This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.