<prompt> Internal arcuate fibers of medulla comes from ?Dorsal nucleus of vagusHypoglossal nucleusNucleus of tractus solitariuNucleus gracilis cuneatus  <response>: Ans. is d i.e., Nucleus gracilis cuneatusThe nucleus gracilis and cuneatus give rise to the internal arcuate fibres.The fibres cross to the opposite side where they form a paramedian band of fibres, called the medial lemniscus. In the lemniscus, the body is represented with the head posteriorly and the feet anteriorly. 