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étymologie

Qu'est-ce (qui) est nucleus of oculomotor nerve - définition

NUCLEUS IN A BRAIN

Nucleus of the oculomotor nerve; Nucleus of oculomotor nerve; Oculomotor nuclei; Oculomotor nuclei complex; Nucleus nervi oculomotorii; Oculomotor complex

Oculomotor nucleus

The fibers of the oculomotor nerve arise from a nucleus in the midbrain, which lies in the gray substance of the floor of the cerebral aqueduct and extends in front of the aqueduct for a short distance into the floor of the third ventricle. From this nucleus the fibers pass forward through the tegmentum, the red nucleus, and the medial part of the substantia nigra, forming a series of curves with a lateral convexity, and emerge from the oculomotor sulcus on the medial side of the cerebral peduncle.

https://en.wikipedia.org/wiki/Oculomotor_nucleus

oculomotor nerves

CRANIAL NERVE III, FOR EYE MOVEMENTS

Occulomotor nerve; Oculomotor; Third cranial nerve; Oculomotor control; Occulomotor; Oculomotor nerve diseases; Nervus oculomotorius; CN III; Superior branch of oculomotor nerve; Inferior branch of oculomotor nerve; Oculomotor nerve damage; Oculomotor Nerve; 3rd cranial nerve; III cranial nerve; Cranial nerve III; Occulomotor palsy; Cn3; CN3; Cranial nerve 3; Oculomotor nerves; Superior branch of the oculomotor nerve; Superior branches of the oculomotor nerves; Superior branches of oculomotor nerves; Branch of oculomotor nerve; Branch of the oculomotor nerve; Branches of the oculomotor nerves; Branches of oculomotor nerves; Branches of oculomotor nerve; Branches of the oculomotor nerve; Oculomotorius

¦ plural noun Anatomy the pair of cranial nerves supplying muscles in and around the eyeballs.

Oculomotor

CRANIAL NERVE III, FOR EYE MOVEMENTS

Occulomotor nerve; Oculomotor; Third cranial nerve; Oculomotor control; Occulomotor; Oculomotor nerve diseases; Nervus oculomotorius; CN III; Superior branch of oculomotor nerve; Inferior branch of oculomotor nerve; Oculomotor nerve damage; Oculomotor Nerve; 3rd cranial nerve; III cranial nerve; Cranial nerve III; Occulomotor palsy; Cn3; CN3; Cranial nerve 3; Oculomotor nerves; Superior branch of the oculomotor nerve; Superior branches of the oculomotor nerves; Superior branches of oculomotor nerves; Branch of oculomotor nerve; Branch of the oculomotor nerve; Branches of the oculomotor nerves; Branches of oculomotor nerves; Branches of oculomotor nerve; Branches of the oculomotor nerve; Oculomotorius

·noun The oculomotor nerve.

II. Oculomotor ·adj Of or pertaining to the movement of the eye;

- applied especially to the common motor nerves (or third pair of cranial nerves) which supply many of the muscles of the orbit.

Wikipédia

Oculomotor nucleus

The fibers of the oculomotor nerve arise from a nucleus in the midbrain, which lies in the gray substance of the floor of the cerebral aqueduct and extends in front of the aqueduct for a short distance into the floor of the third ventricle. From this nucleus the fibers pass forward through the tegmentum, the red nucleus, and the medial part of the substantia nigra, forming a series of curves with a lateral convexity, and emerge from the oculomotor sulcus on the medial side of the cerebral peduncle.

The nucleus of the oculomotor nerve does not consist of a continuous column of cells, but is broken up into a number of smaller nuclei, which are arranged in two groups, anterior and posterior. Those of the posterior group are six in number, five of which are symmetrical on the two sides of the middle line, while the sixth is centrally placed and is common to the nerves of both sides. The anterior group consists of two nuclei, an antero-medial and an antero-lateral.

The nucleus of the oculomotor nerve, considered from a physiological standpoint, can be subdivided into several smaller groups of cells, each group controlling a particular muscle.

A nearby nucleus, the Edinger-Westphal nucleus lies dorsal to the main oculomotor nucleus. It is responsible for the autonomic functions of the oculomotor nerve, including pupillary constriction and lens accommodation.

https://en.wikipedia.org/wiki/Oculomotor nucleus