Mohanty Ahneesh J, van Rooij Joep A F, Miseré Renée M L, Lataster Arno, Rozen Shai M, van der Hulst René R W J, Tuinder Stefania M H
Department of Plastic and Reconstructive Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA.
Department of Plastic, Reconstructive, and Hand Surgery, Maastricht University Medical Center, Maastricht, Netherlands.
Head Neck. 2025 Mar;47(3):928-935. doi: 10.1002/hed.27990. Epub 2024 Nov 7.
Despite indications of a close interaction between the trigeminal (CN V) and facial nerve (CN VII) within the buccinator muscle, a combination of anatomical dissection and histological analysis has not been reported.
Five formalin-fixed and fresh-frozen hemifaces were dissected to reveal the buccal fat pad, the buccinator muscle, and anastomotic connections between CN V and CN VII within it. Samples were taken for histological processing and immunostaining.
Branches of CN V and CN VII formed pronounced sensorimotor anastomotic connections in and surrounding the buccinator muscle. These findings were histologically evident with close intramuscular coupling of sensory and motor fibers. There was an evident but gradual shift from motor to sensory fibers in the interconnections when analyzing them from the side of CN V toward the side of CN VII and vice versa.
These results further elucidate connections between CN V and CN VII and their possible role in proprioception of the facial muscles.
尽管有迹象表明三叉神经（CN V）和面神经（CN VII）在颊肌内存在密切相互作用，但尚未见解剖学 dissection 和组织学分析相结合的报道。
对5个经福尔马林固定和新鲜冷冻的半侧面部进行解剖，以显露颊脂垫、颊肌以及其中CN V与CN VII之间的吻合连接。采集样本进行组织学处理和免疫染色。
CN V和CN VII的分支在颊肌内及其周围形成了明显的感觉运动吻合连接。这些发现通过感觉和运动纤维在肌内的紧密耦合在组织学上得以证实。从CN V侧向CN VII侧分析这些连接时，在相互连接中存在从运动纤维到感觉纤维的明显但逐渐的转变，反之亦然。
这些结果进一步阐明了CN V和CN VII之间的连接及其在面部肌肉本体感觉中的可能作用。
