Andrew Kevlian, Iwanaga Joe, Loukas Marios, Oskouian Rod J, Tubbs R Shane
Anatomical Sciences, St. George's University, St. George, GRD.
Seattle Science Foundation, Seattle, USA.
Cureus. 2018 Jun 26;10(6):e2883. doi: 10.7759/cureus.2883.
The carotid sinus nerve is known to convey baroreceptive fibers from the carotid sinus. Despite studies on the baroreflex pathway and the course and communications of the carotid sinus nerve with the surrounding nervous and vascular structures, there have been scant reports on variations in the origin of the carotid sinus nerve (CSN). We identified an unusual origin of the CSN. On the right side of a cadaveric specimen, the CSN was found to arise from two small rami extending from the external laryngeal nerve. Such a case can help better understand various pathways used to monitor the carotid sinus. Additionally, surgeries that manipulate the superior laryngeal nerve could possibly injure a variant carotid sinus nerve, as seen in the present case.
已知颈动脉窦神经传导来自颈动脉窦的压力感受性纤维。尽管对压力感受性反射通路以及颈动脉窦神经与周围神经和血管结构的走行及交通进行了研究，但关于颈动脉窦神经（CSN）起源变异的报道却很少。我们发现了CSN的一种不寻常起源。在一具尸体标本的右侧，发现CSN起源于从喉外神经发出的两条小分支。这样的病例有助于更好地理解用于监测颈动脉窦的各种通路。此外，如本病例所示，涉及喉上神经的手术可能会损伤变异的颈动脉窦神经。
