Point 10
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We have already discussed one PREGANGLIONIC PARASYMPATHETIC (visceromotor nuclei) nucleus, the dorsal motor nucleus X. There are three other areas in the brain stem that contain preganglionic parasympathetic cell bodies. Unlike the dorsal motor nucleus X, these nuclei cannot be seen in your brain stem sections. The most caudal of these cell groups is the INFERIOR SALIVATORY nucleus of C.N. IX. This nucleus lies in the medulla just MEDIAL to the nucleus ambiguus. |