group of cells in the medulla oblongata located between the inferior olive and the descending trigeminal nucleus and tract; composed of a magnocellular part [TA] (pars magnocellularis [TA]), a parvocellular part [TA] (pars parvocellularis [TA]), and a subtrigeminal part [TA] (pars subtrigeminalis [TA]); receives fibers from the spinal and motor cortex and projects to the cerebellum. SYN: lateral nucleus of medulla oblongata, nucleus lateralis medullae oblongatae.
