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  • Title: A direct neuronal projection from the entopeduncular nucleus to the globus pallidus. A PHA-L anterograde tracing study in the rat.
    Author: Fink-Jensen A, Mikkelsen JD.
    Journal: Brain Res; 1991 Feb 22; 542(1):175-9. PubMed ID: 1647254.
    Abstract:
    The efferent projections of the rat entopeduncular nucleus were examined by use of the anterogradely transported lectin Phaseolus vulgaris-leucoagglutinin (PHA-L). Injections of PHA-L into different parts of the entopeduncular nucleus resulted in a moderate number of labeled nerve fibers in the ipsilateral globus pallidus. The fibers displayed a heterogeneous morphology: some were of small caliber with few delicate varicosities, others were of medium caliber with several more bulbous nerve terminals. Restricted injections in the dorsal and ventral parts of the entopeduncular nucleus, respectively, showed that the dorsal part of the entopeduncular nucleus projects to the dorsal and rostral parts of the dorsal pallidum and the ventral part to the ventral and caudal parts.
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