Department of Psychology, National Chung Cheng University, Taiwan.
Mental Health Promotion Center, National Chung Cheng University, Taiwan.
Anat Rec (Hoboken). 2018 Nov;301(11):1906-1916. doi: 10.1002/ar.23953. Epub 2018 Oct 19.
Wheat germ agglutinin-horseradish peroxidase was injected into the entire (0.8 μL) or partial (rostral or caudal, 0.1-0.3 μL) superior cervical ganglion (SCG) of the rat (male Sprague-Dawley, N = 35) to examine the distribution of neurons in the middle (MCG) and inferior (ICG) cervical ganglion that send axons bypass the SCG. Whole-mounts of the SCG, cervical sympathetic trunk (CST), MCG, ICG, and sections of the brainstem and spinal cord were prepared. With entire SCG tracer injection, neurons were labeled evenly in the MCG (left: 258, right: 121), ICG (left: 848, right: 681), and CST (up to 770). Some neurons grouped in a single bulge just rostral to the MCG, which we termed as the "premiddle cervical ganglion" (pMCG). The left pMCG (120) is larger and has more neurons than the right pMCG (82). Centrally, neurons were labeled in lamina IX of cervical segments (C1: 18%, C2: 46%, C3: 33%, C4: 3%), intermediate zone of thoracic segments (T1: 31%, T2: 35%, T3: 27%, T4: 7%), and intermediate reticular nuclei (96%) and perifacial zone (4%) of brainstem. The rostral and caudal SCG injection selectively labeled neurons mainly in brainstem, C1-C2 and in T1-T2, respectively. Before projecting to their peripheral targets, many neurons in pMCG, MCG and ICG run rostrally within the CST rather than segmentally through the closest rami, from the level of SCG or above. Neurons in pMCG and MCG may have similar or complementary function and those in brainstem may be involved in the vestibulo-autonomic interaction. Anat Rec, 301:1906-1916, 2018. © 2018 Wiley Periodicals, Inc.
小麦胚凝集素-辣根过氧化物酶被注入大鼠（雄性 Sprague-Dawley，N = 35）的整个（0.8 μL）或部分（额或尾侧，0.1-0.3 μL）颈上神经节（SCG）中，以检查绕过 SCG 的轴突发送的神经元在中间（MCG）和下颈（ICG）神经节中的分布。制备了 SCG、颈交感干（CST）、MCG、ICG 的全组织和脑干和脊髓切片。用整个 SCG 示踪剂注射，MCG（左侧：258，右侧：121）、ICG（左侧：848，右侧：681）和 CST（最多 770）中的神经元均匀标记。一些神经元聚集在 MCG 前方的单个隆起处，我们称之为“前颈神经节”（pMCG）。左侧 pMCG（120）比右侧 pMCG（82）更大且神经元更多。在中枢，神经元在颈椎段（C1：18%，C2：46%，C3：33%，C4：3%）的 lamina IX、胸段（T1：31%，T2：35%，T3：27%，T4：7%）的中间区和脑干的中间网状核（96%）和peri 面区（4%）中标记。额侧和尾侧 SCG 注射选择性标记神经元主要位于脑干、C1-C2 和 T1-T2 中。在投射到其外周靶标之前，pMCG、MCG 和 ICG 中的许多神经元在 CST 内向头侧运行，而不是通过最近的分支节段性运行，从 SCG 或其上方的水平开始。pMCG 和 MCG 中的神经元可能具有相似或互补的功能，而脑干中的神经元可能参与前庭自主神经相互作用。解剖学记录，301：1906-1916，2018. © 2018 Wiley Periodicals，Inc.
