| 摘要: |
| 本文解剖了15例北京鸭的眶部,左右两侧共30面。观察了眶部的骨骼、肌肉、血管、神经以及眼球的附属构造。北京鸭的眶部由额骨、筛骨、泪骨、蝶骨及鳞颞骨共同组成骨骼支架。眶底部有眶中隔。泪骨与颧突间由下颌长韧带相连,形成完整的眶缘。眶部的肌肉有眼睑肌和眼球肌。第三睑即瞬膜由瞬膜方肌和瞬膜锥状肌牵引。眶部的神经除动眼神经,滑车神经和外展神经分布至眼球肌外,尚有由上颌神经的分支——额后神经,下睑神经和颧神经分布至眼睑及周围的皮肤。由眼神经分出的睫状长神经入眼球,额前神经分布至眼前角的皮肤。眶部的血管有眶上动脉、筛动脉、眼颞动脉及眼内动脉的分支分布。它们间互相吻合。 |
| 关键词: 视神经孔 瞬膜 眶部 眼球 神经分布 筛动脉 睫状长神经 北京鸭 滑车神经 动眼神经 |
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| THE ANATOMY OF ORBITAL PART OF ANAS DOMESTICA L. |
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| Abstract: |
| 30 orbital parts in 15Anas domestic L.were observed.The skelton of the orbit is formed by frontal,ethmoid,lacrimal,sphenoid and squamosal bones.The lacrimal bone and zygomatic process are conne- cted by the mandibular long ligament to form the ventral margin of the orbit.There are extraocular muscles and muscles of eyelid. M.quartus nictitans and M.pyramidialis nictitans are the mascles for the third eyelid. The orbit is destributed by the ramii of supraorbitalis artery, ethmoid artery,ophthalmotemporal art... |
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