Functional role and angioarchitectural arrangement of the filiform and fungiform papillae on the medial-dorsal surface of the beagle dog tongue

Authors
Citation
K. Ojima, Functional role and angioarchitectural arrangement of the filiform and fungiform papillae on the medial-dorsal surface of the beagle dog tongue, ANN ANATOMY, 183(4), 2001, pp. 325-329
Citations number
21
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Experimental Biology
Journal title
ANNALS OF ANATOMY-ANATOMISCHER ANZEIGER
ISSN journal
0940-9602 → ACNP
Volume
183
Issue
4
Year of publication
2001
Pages
325 - 329
Database
ISI
SICI code
0940-9602(200107)183:4<325:FRAAAO>2.0.ZU;2-V
Abstract
A scanning electron microscopic study has been performed on the three-dimen sional morphological structure and functional arrangement in microvascular cast specimens (MVCS) of the filiform (FiP) and fungiform papillae (FuP) of the entire medial-dorsal surface of the caudal portion of the beagle dog t ongue. The characteristics and functional arrangements of each FiP and FuP were as follows: The FiPs densely and geometrically covered the entire medial-dors al surface. The outer structure of the FiPs was composed of both the main p rocess (mp) and accessory process (ap). These were formed by both the ascen ding and descending, branches and originating in their tributaries was a sp oon-like capillary micronetwork structure with a sharp arrowhead-like top. The mp inclined posteriorly and the ap anteriorly. On the other hand, the o uter structure of the FuPs was a rounded papillary body composed of a capil lary microvascular network consisting of the ascending and descending branc hes just as the FiPs. They were distributed sporadically along the oblique eines of FiPs in a V running from both peripheral edges in the posterocentr al direction. It has been conjectured that the FiPs play a concentric functionally import ant role in transporting food and liquid from both the peripheral edges to the postero-central part or towards the pharynx, and on the other hand the FuPs play an assisting role in receiving gustatory sensations from the mast icated food and liquid on the medial-peripheral and central-dorsal surface of the caudal portion of the beagle dog tongue.