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CAROTID

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Originally appearing in Volume V08, Page 635 of the 1911 Encyclopedia Britannica.
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CAROTID BODIES These are two small bodies situated, one on each See also:

side, between the origins of the See also:external and See also:internal carotid See also:arteries. Microscopically they are divided into nodules or See also:cell balls by connective See also:tissue, and these closely resemble the structure of the parathyroids, but are without any thymic tissue. The See also:blood-vessels in their interior are extremely large and numerous. The See also:modern view of their development is that they are See also:part of the sympathetic See also:system, and the reaction of their cells to See also:chromium salts bears this out. (See Kohn, Archiv f. mikr. Anat. lxx., 1907.) In the Anura there is a rete or network into which the carotid artery breaks up in the position of the carotid See also:body, and this has an important effect on the course of the circulation. It is probable, however, that this structure has nothing to do with the carotid body of Marmalia.

End of Article: CAROTID

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