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  • Title: Projections from inspiratory neurons of the nucleus retroambigualis to phrenic motoneurons in the cat.
    Author: Fedorko L, Hoskin RW, Duffin J.
    Journal: Exp Neurol; 1989 Sep; 105(3):306-10. PubMed ID: 2475362.
    Abstract:
    The connection between the inspiratory neurons of the nucleus retroambigualis and the phrenic motoneurons was examined using the techniques of antidromic mapping to discover collaterals and spike-triggered averaging to detect postsynaptic potentials. Axon collaterals within the region of the C5 phrenic nucleus were found for 17 of 26 (65%) inspiratory neurons and 6 of these 17 (35%) were shown to generate excitatory postsynaptic potentials in at least one phrenic motoneuron. It was concluded that these results demonstrate a strong connection for those inspiratory neurons of the nucleus retroambigualis with a collateral within the phrenic nucleus.
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