交叉前沟 - Sulcus prechiasmaticus

影像

描述

The superior surface of the body of the sphenoid bone is bounded behind by a ridge, which forms the anterior border of a narrow, transverse groove, the chiasmatic groove (optic groove, prechiasmatic sulcus), above and behind which lies the optic chiasma of cranial nerve 2 (the optic nerve).

The groove ends on either side in the optic foramen, which transmits the optic nerve and ophthalmic artery into the orbital cavity.


结构高低级

大体解剖 > 骨, 骨骼系统 > 中轴骨骼 > 颅 > 蝶骨 > 蝶骨体 > 交叉前沟

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