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・ Infest (festival)
・ Infesta
・ Infesta (Paredes de Coura)
・ Infestation
・ Inferior longitudinal muscle of tongue
・ Inferior medial genicular artery
・ Inferior medullary velum
・ Inferior mesenteric
・ Inferior mesenteric artery
・ Inferior mesenteric ganglion
・ Inferior mesenteric lymph nodes
・ Inferior mesenteric plexus
・ Inferior mesenteric vein
・ Inferior nasal concha
・ Inferior oblique muscle
Inferior olivary nucleus
・ Inferior Oolite
・ Inferior ophthalmic vein
・ Inferior orbital fissure
・ Inferior palpebral nerve
・ Inferior pancreaticoduodenal artery
・ Inferior parietal lobule
・ Inferior petrosal sinus
・ Inferior petrosal sinus sampling
・ Inferior petrosal sulcus
・ Inferior pharyngeal constrictor muscle
・ Inferior phrenic
・ Inferior phrenic arteries
・ Inferior phrenic vein
・ Inferior posterior nasal branches of greater palatine nerve


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Inferior olivary nucleus : ウィキペディア英語版
Inferior olivary nucleus

The inferior olivary nucleus, also called inferior olive, is the largest nucleus situated in the olivary body, part of the medulla oblongata. It is involved in motor control. It is a major source of input to the cerebellum. The hypoglossal nucleus sends its fibers ventrally between the pyramid and inferior olivary nucleus to exit as the hypoglossal nerve.
==Structure==
The inferior olivary nucleus consists of a gray folded lamina arranged in the form of an incomplete capsule, opening medially by an aperture called the hilum.
Olivocerebellar fibers are neurons that have their cell bodies in the inferior olivary nucleus. Their axons leave medially through the hilum, cross the midline, and ascend into the cerebellum via the inferior cerebellar peduncle.〔 Once they enter the cerebellum, they are referred to as the climbing fibers.〔 Finally, they terminate by synapsing in the cerebellar cortex, including the cortex of the vermis, paramedian lobule, and the cerebellar hemispheres.〔
The fibers leaving the inferior olivary nucleus at the hilum may be referred to as the "peduncle" of the olive. They cross with those from the opposite olive in the raphe. After the raphe, they may be referred to as the internal arcuate fibers. The fibers are smaller than the internal arcuate fibers connected with the medial lemniscus.
Important connections between the cerebrum and the olive of the same side exist, but the exact pathway is unknown. Many collaterals from the reticular formation and from the pyramids enter the inferior olivary nucleus.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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