Khamas W A, Ghoshal N G
Anat Anz. 1982;151(1):14-28.
Blood supply to the nasal cavity of the sheep has been grossly studied on 25 specimens by employing different injection techniques. Following intramuscular injection of Rompun solution (Xylazine hydrochloride, 10 mg/lb body weight), the animals were killed either by bleeding or decapitation. Subsequently, the heads were perfused with physiologic saline solution, injected with various intravascular materials, and then either routinely dissected or macerated to trace the vessels. The nasal cavity of the sheep was mainly supplied by the sphenopalatine and ethmoidal, and indirectly by their anastomoses with the infraorbital, malar, major palatine, and the superior labial arteries. The venous drainage of the nasal cavity has connections with the cavernous sinus via: 1. the dorsal and/or the lateral nasal veins-angularis oculi vein-ophthalmic plexus; and 2. via the sphenopalatine vein-rostral branch of the deep facial-pterygoid plexus. The former venous pathway has also been confirmed by venography in one live anesthetized sheep. The internal carotid rete was found to be enmeshed in a venous plexus of the cavernous sinus. From their close relationship it may be inferred that their function is to accommodate flow in opposite directions and that such an arrangement has the necessary anatomic requirements expected of a countercurrent heat exchanger.
通过采用不同的注射技术，对25个标本的绵羊鼻腔血液供应进行了大体研究。肌肉注射隆朋溶液（盐酸赛拉嗪，10毫克/磅体重）后，通过放血或断头处死动物。随后，用生理盐水灌注头部，注入各种血管内材料，然后常规解剖或浸软以追踪血管。绵羊鼻腔主要由蝶腭动脉和筛动脉供应，间接由它们与眶下动脉、颧动脉、腭大动脉和上唇动脉的吻合支供应。鼻腔的静脉引流通过以下途径与海绵窦相连：1. 鼻背和/或鼻外侧静脉 - 内眦静脉 - 眼丛；2. 通过蝶腭静脉 - 面深部 - 翼丛的 Rostral 分支。在一只活的麻醉绵羊中，静脉造影也证实了前一种静脉途径。发现颈内动脉网陷入海绵窦的静脉丛中。从它们的密切关系可以推断，它们的功能是适应相反方向的血流，并且这种排列具有逆流热交换器所需的解剖学要求。
