This work was supported by grants from the United States Public Health Service—RG-2125 (C12), and USPHS D-1215.
Cholinesterases in the tongue of the potto (Perodicticus Potto)†
Article first published online: 3 FEB 2005
Copyright © 1963 Wiley-Liss, Inc.
The Anatomical Record
Volume 146, Issue 1, pages 7–15, May 1963
How to Cite
Hodosh, M. and Montagna, W. (1963), Cholinesterases in the tongue of the potto (Perodicticus Potto). Anat. Rec., 146: 7–15. doi: 10.1002/ar.1091460103
- Issue published online: 3 FEB 2005
- Article first published online: 3 FEB 2005
The tongue has three circumvallate papillae, arranged in a triangle ahead of the foramen caecum. Gustatory buds are found only on the walls of the vallate papillae and at the surface of the fungiform papillae. The gustatory cells contain acetylcholinesterase; the sustentacular cells contain no such enzymes. A subepithelial network of nerve fibers, containing acetyl-and butyrylcholinesterases is parallel to the surface of the tongue and extends into the connective tissue cores of all papillae. Numerous pleomorphic end organs are found below all four types of papillae. These abound in acetyl-and butyrylcholinesterases. The dorsal subepithelial blood vessels contain butyrylcholinesterase, and small amounts of acetyl-cholinesterase. The ventral aspect of the tongue has fewer nerve fibers and end organs than the dorsal surface does. The nerve fibers to the serous glands of von Ebner, and particularly those to the mucous glands contain considerable acetylcholinesterase.