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The nerve supply of the ductus arteriosus in dogs


, : The nerve supply of the ductus arteriosus in dogs. Biull Eksptl Biol I Med [Transl] 46(7): 862-865

The nerves of the ductus arteriosus were studiedby macro- and microscopic examination and physiological methods in 20 adult dogs and newbornpups. Nerves passing in the direction of the ductus are formed from the branches of the truncus sympathicus and the vagus nerve of the left side. Two variations of nerve distribution were found: scattered and magistral. In the last variant an individual nerve (the nerve of ductus arteriosus) approaches the duct. Its diameter reaches 0.75 mm in the newborn pups. Experiments showed that the nerve of ductus arteriosus is a depressor. Its function changes with the age of dogs. It is especially pronounced in puppies during the first 5 days of life and is completely absent in adult dogs. The depressive function of the nerve of ductus arteriosus is meant to serve during the first period of postembryonic development when the depressive function of Ludwig-Cion's nerve is absent.

US$19.90

DOI: 10.1007/bf00837804


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