Which of the following fibers reach Purkinje cells directly?: (A) Vestibular nuclei, (B) Inferior olivary nucleus, (C) Raphe nucleus, (D) Locus coeruleus
Answer is B. Ans. B. Inferior olivary nucleus* Only fibers reaching Purkinje cells directly in the outer molecular layer are climbing fibers originating from inferior olivary nucleus of medulla oblongata constituting olivocerebellar and para olivocerebellar tract.* Rest all other tracts are called Mossy fibers.