颈动脉体(球)位于颈总动脉分叉处,为3至6毫米宽的结构疏松的小结。由非嗜铬性的园形、多角形或长形大细胞所组成,内有丰富的毛细血管网。公认它是付节器官,具有影响付交感神经紧张力的内分泌功能。但多数生理学家则认为它具有与呼吸中枢连接的化学感受器的功能,能调节血液气体的含量。截至目前对它的结构与功能认识得还不十分清楚。 Carotid body (ball) is located in the common carotid artery bifurcation, loose structure of 3 to 6 mm wide summary. By the non-chrome-shaped garden, polygons or long large cells, which have a wealth of capillary network. It is recognized as the organ of delivery and has an effect on the endocrine function of the sympathetic nervous system. However, most physiologists think it has the function of chemoreceptors connected to the respiratory center to regulate blood gas levels. Up to now, its structure and function of understanding is not yet very clear.