ala cinerea

ala cinerea

[sinir′ē·ə]

the triangular area on the floor of the brain's fourth ventricle from which the autonomic fibers of the vagus nerve arise.

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ala

pl. alae [L.] a winglike process, e.g. the cervical and caudal alae of nematodes; the wing-like structures at the esophageal and tail regions of the worm.

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ala cinerea

an area on the floor of the 4th ventricle; the trigonum nervus vagi of the medulla oblongata.

ala lobuli centralis

a lobule of the rostral part of the cerebellar hemispheres that extends from the vermis.

ala nasi

the wing of the nose; the cartilaginous flap on the outer side of either nostril.

ala ossis illium

wing of the ilium.

sacral ala

the lateral parts of the base of the sacrum which carry the articular surfaces for the ilium and the transverse processes of the last lumbar vertebra.

ala spuria

the alula.