Angioarchitectural classification of the fungiform papillae on the dorsal surface of the bullfrog tongue.
In this study, the three-dimensional anatomy of the microvascular structure of fungiform papillae (FuP) on the dorsal surface of the bullfrog tongue has been investigated using scanning electron microscopy (SEM), and angioarchitectural classification has been carried out by means of the capillary loop (L. s) and intra-bridge structure (I. b). FuP from 30 sound bullfrog tongues were used. The following research methods were applied: SEM observation on microvascular cast specimens (MVCS) of bullfrog tongue's FuP were injected with synthetic resin (Mercox). Observation of MVSC showed that the bullfrog tongue FuP consisted of an ascending branch (A. b), L. s, I. b and a descending branch (D. b). Based upon SEM observations of MVCS, FuP can be classified into four types: A, B, C, D types according to A. b, L. s, I. b and D. b. A-type (none I. b) formed from A. b, L. s, D. b only and with no I. b. B-type (one I. b) consisted of A. b, L. s, D. b and one I. b. C-type (two I. b) were composed of A. b, L. s, D. b and two I. b. D-type (three I. b) were composed of A. b, L. s, D. b and three I. b, A. b, L. s, I. b and D. b on each. A, B, C, D types were all same thickness.
Ojima
K
K
Department of Physiology, School of Dentistry at Tokyo, Nippon Dental University, Japan.
Takeda
M
M
Saiki
C
C
Takahashi
T
T
Matsumoto
S
S
D000818:Animals; D002196:Capillaries / Q000648:ultrastructure; D005260:Female; D008297:Male; D008833:Microcirculation / Q000000981:diagnostic imaging*; D008855:Microscopy, Electron, Scanning; D008961:Models, Structural; D011892:Rana catesbeiana / Q000033:anatomy & histology*; D014059:Tongue / Q000033:anatomy & histology* / Q000098:blood supply*; D014463:Ultrasonography