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July 1974

The Ganglion on the Internal Laryngeal Nerve

Author Affiliations

Madras, India
From the Kilpauk Medical College, Madras 600010 (Dr. Ramaswamy), and the Government Headquarters Hospital, Gudiyatham, North Arcot (Dr. Kulasekaran), Tamil Nadu, India.

Arch Otolaryngol. 1974;100(1):28-31. doi:10.1001/archotol.1974.00780040032006

Studies on the ganglion on the internal laryngeal nerve within the human larynx have been done in more than 100 human larynges and data such as the size of the ganglion and its distance from the thyroid notch from 51 specimens are presented. Serial section studies of the vagus from the base of the skull to the site of branching of the internal laryngeal nerve and of the latter from that site to its entry into the larynx and of its trunk and its branches within the larynx showed no other gross collection of ganglion cells apart from those corresponding to the sensory ganglia at the base of the skull and to the ganglion described here. Branches from the ganglion were found to be distributed chiefly to the saccule and to the vicinity of its opening into the larynx. Such a macroscopic ganglion was not found in the larynges of dogs (four), cats (two), rabbit (one), bat (1), cows (four), goats (4), and monkeys (four), but was present in the larynges of two of four pigs dissected.

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