鞘动脉（sheathed artery）是哺乳动物脾脏所特有的动脉，具有特殊的管壁构造。是存在于红髓中粗细和毛细血管相似的动脉，具有以胶原纤维为主包括嗜银纤维和弹性纤维的厚管壁（Schweigger Seidel sheath）。在狗、猫、猪、鼹鼠等特别发达，认为可能与脾脏血流量的调节有关但确切的功，能尚未得到阐明。
... precapillary arterioles 毛细血管前微动脉 sheathed arterioles 鞘动脉 muscularization of arterioles 脉肌化 ...
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喉返神经与颈部食管及颈动脉鞘的位置关系复杂。
The relations of the RLN with the neck esophagus and the carotid sheath were complicated.
目的：研究颈动脉鞘和椎前筋膜的解剖关系，提高颈椎前路手术中对颈总动脉的安全性。
Objective: to investigate the anatomic relationship between prevertebral fascia and carotid sheath and to guarantee the safety of the common carotid artery in anterior cervical approach.
目的为视神经鞘减压术提供有关动脉解剖学资料。
Objective to provide anatomic data of sheath arteries which were related to decompression of optic nerve sheath.
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