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荐尾[尾骨]腹内侧肌
Musculus sacrocaudalis [-coccygeus] ventralis medialis
定义
起点： 起自最后一块荐椎的腹侧面，并从每节椎骨延伸至下一节椎骨。
止点： 各椎骨的腹外侧突。
功能： 尾部屈曲，偶尔参与侧向运动。
神经： 腹侧尾神经丛（plexus caudalis ventralis）的分支。
变异：
在马属动物中，荐尾[尾骨]腹内侧肌由短肌束组成，各肌束以短腱终止。该肌起自最后三块荐椎椎体及第一块尾椎的腹侧面。该肌借短腱止于前八个脉弓突，并与荐尾[尾骨]腹外侧肌共用肌腱。
參考資料
Barone R. Anatomie comparée des mammifères domestiques, Tome 2, Arthrologie et myologie, 4th edition, Vigot, Paris, 2017.
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