Sensory, sympathetic and parasympathetic ganglia located in the head and neck of rhesus monkeys were histologically examined after injection of H3-HRP into the right mandibular premolars and molars. The results showed positive labeling of ganglionic cell bodies located in the ipsilateral trigeminal, superior cervical, and otic ganglia, plus the ipsilateral mesencephalic nucleus of the trigeminal nerve.
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Chiego et al. (1980) studied this question.
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