1974
DOI: 10.1113/expphysiol.1974.sp002237
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The Secretory Innervation of the Parotid Gland of the Cat: An Unexpected Component

Abstract: After section and degeneration of the auriculo-temporal nerve in cats, parotid secretion could still be elicited by injecting eserine into the gland, by application of citric acid to the tongue or by electrical stimulation of afferent oral nerves, and choline acetyltransferase activity could be demonstrated in extracts of the gland. The secretion obtained was not mediated via sympathetic nerves, although electrical stimulation of such nerves caused some secretion from most glands. Cholinergic secretory fibres … Show more

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Cited by 20 publications
(9 citation statements)
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“…The parotid gland of the cat has a sparse supply of sympathetic secretory fibres and these act mainly on 3-adrenoceptors but to a small and varyiing degree also oIn a-receptors [see Ekstr6m and Emmelin, 1974;Thulin, 1975]. The present observationis on the effects of symnpathetic stimulation and sympathomimetic drugs on a slow secretion elicited by auriculo-temporal stimulation or pilocarpine injection are compatible with this view.…”
Section: Parotid Glandssupporting
confidence: 79%
See 1 more Smart Citation
“…The parotid gland of the cat has a sparse supply of sympathetic secretory fibres and these act mainly on 3-adrenoceptors but to a small and varyiing degree also oIn a-receptors [see Ekstr6m and Emmelin, 1974;Thulin, 1975]. The present observationis on the effects of symnpathetic stimulation and sympathomimetic drugs on a slow secretion elicited by auriculo-temporal stimulation or pilocarpine injection are compatible with this view.…”
Section: Parotid Glandssupporting
confidence: 79%
“…The parotid gland of the cat has a sparse supply of sympathetic secretory fibres and these act mainly on 3-adrenoceptors but to a small and varyiing degree also oIn a-receptors [see Ekstr6m and Emmelin, 1974;Thulin, 1975]. Records as in Fig.…”
Section: Parotid Glandsmentioning
confidence: 99%
“…The right parotid cannula was then replaced by another cannula of a similar type supplied with a three-way tap to which a syringe could be attached. Eserine sulphate, 200 ,ug in 0-2 ml saline solution, was injected into the gland during 5 sec; 5 sec later the tap was turned so as to allow saliva to flow out, and the drops of saliva were recorded for a period of 15 min [Emmelin, Muren and Str6mblad, 1954;Ekstr6m and Emmelin, 1974]. Thereafter an additional dose of 5 mg/kg hexamethonium was given and the same procedure was applied to the left parotid gland.…”
Section: Methodsmentioning
confidence: 99%
“…However in our study the histological changes in the glands were similar whether the denervation was, judged from secretory data, complete or partial; sheep 9 was an exception as there was no significant difference in nuclear-to-cytoplasmic ratios in the two glands. Ekstrom and Emmelin [1974b] discuss the presence of other parasympathetic innervations to the parotid gland of the cat and have established that secreto-motor fibres may course along the internal maxillary artery in this species. There is no evidence available yet of such extra routes for reflex parasympathetic secretion in ruminants; it remains however, a possibility and could explain the partial denervations.…”
Section: Discussionmentioning
confidence: 99%