胸椎后核
Nucleus thoracicus posterior
- 拉丁名祖: Nucleus Stillingi; Nucleus Clarkii
- 命名学: Stilling; Clarke
定义
胸核后部,又称克拉克背侧核或克拉克柱,是位于脊髓后角底部的一簇神经元胞体。该区域对应脊髓中间带内的外侧中间质,即第七层(lamina VII)。
克拉克柱延伸自C8至L3/L4脊髓节段,在处理无意识本体感觉信息中发挥关键作用。它接收来自肌梭和高尔基腱器官的传入信息,分别感知肌肉长度和张力的变化。起源于克拉克柱神经元的轴突构成脊髓小脑背侧束和脊髓小脑腹侧束的一部分,将本体感觉信号传递至小脑,以协调运动功能。
參考資料
Snell, R.S. (2010). ‘Chapter 4: The Spinal Cord and the Ascending and Descending Tracts’, in Clinical Neuroanatomy. (7th ed.) Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, pp. 137-142.
Byrne, J.H. and Dafny, N. ‘Chapter 3: Anatomy of the Spinal Cord. [Content reviewed and revised 07 Oct 2020]. In Neuroanatomy Online, an open-access electronic laboratory for the neurosciences. McGovern Medical School at UTHealth; Accessed 2022 Oct 22. Available from: https://nba.uth.tmc.edu/neuroscience/m/s2/chapter03.html
Brown, A.G. (1982). Review article the dorsal horn of the spinal cord. Quarterly Journal of Experimental Physiology: Translation and Integration, 67(2), pp.193-212. https://doi.org/10.1113/expphysiol.1982.sp002630
Ganapathy, M.K., Reddy, V. and Tadi, P. Neuroanatomy, Spinal Cord Morphology. [Updated 2021 Oct 30]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK545206/