![[脑桥]被盖部 - 脑 - 脑干 - e-Anatomy](https://cdn1.imaios.com/i/imaios-images/web/images/eanatomy/modules/cerveau-anatomie/images/v4/02813b27de97766fab9c7e861464586111c8b42039d6ae53895f6bea5507a725?ar=640:670&bg=FFFFFF&fit=crop&obm=1&oi=aHR0cHM6Ly9jZG4xLmltYWlvcy5jb20vaS9pbWFpb3MtaW1hZ2VzL3dlYi9pbWFnZXMvZWFuYXRvbXkvbW9kdWxlcy9jZXJ2ZWF1LWFuYXRvbWllL2ltYWdlcy92NC9iZjczNjQxZDI3ZGU2NTAzOTliMDNjYzZmMTZjZDdiNDg0MTgwMTA5NmY5MDFlYjMzNThjY2YyMDAwZGJkZjg1&p=MTA5MCw2MDQ&t=W-iEkeahpV3ooqvnm5bpg6g&tf=Tm90byBTYW5zIFND&tx=1090&ty=604&w=350&wk=1&s=9f4ca17f53ed1af07183b2487a8c6ff3)
[脑桥]被盖部
Tegmentum pontis
- 拉丁语近义词： Pars dorsalis pontis
定义
脑桥被盖位于脑干内，是脑桥的两个组成部分之一，另一部分为腹侧脑桥。脑桥被盖可与基底脑桥相对而定义：基底脑桥含有沿颅尾方向走行的皮质脊髓束，可视为腹侧延髓的颅侧延伸；然而，基底脑桥与腹侧延髓的区别在于，其还含有额外的横行脑桥纤维，这些纤维向外侧延续，形成小脑中脚。脑桥被盖是指从基底脑桥背侧至第四脑室之间的所有结构。脑桥被盖与延髓背侧面共同构成菱形窝（即第四脑室底部）的一部分。
脑桥被盖包含脑神经核，即展神经核、面神经核及前庭蜗神经核及其相关纤维束、脑桥网状结构、由脚桥核和背外侧被盖核组成的脑桥中脑胆碱能系统，以及呼吸调节中枢——呼吸调整中枢（pneumotaxic centre）和长吸中枢（apneustic centre）。邻近的重要结构包括：动眼神经核和滑车神经核（均位于中脑）、脑桥核（位于基底脑桥内），以及中缝核、蓝斑核、第9至12对脑神经核和背侧呼吸组（均位于脑干更尾侧部位）。背侧呼吸组与脑桥被盖的呼吸调整中枢及长吸中枢相互联系。
參考資料
This definition incorporates text from the wikipedia website - Wikipedia: The free encyclopedia. (2004, July 22). FL: Wikimedia Foundation, Inc. Retrieved August 10, 2004, from http://www.wikipedia.org
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