Anatomical study on the mandible of the Korean native goat

Lee, Heungshik S.; Yi, Seong-joon

Korean Journal of Veterinary Research 1993;33(3):351-359.

Heungshik S. Lee, Seong-joon Yi

College of Veterinary Medicine, Seoul National University

한국재래산양 하악골에 관한 해부학적 연구

이흥식, 이성준

서울대학교 수의과대학

Abstract

This study was carried out to identify metric and non-metric characteristics of the mandible of the Korean native goat. The results were summarized as follows : The length of the mandible was more correlated with the width of the base of the ramus mandibulae than the margo alveolaris(p<0.01). The height between incisura vasorum facialium and processus condylaris had very high correlation with the height between incisura vasorum facialium and incisura mandibulae(p<0.01). The former was also more correlated to the height of the mandible in front of the first molar tooth than the height of the mandible behind the last molar tooth(p<0.01). The symphysis was formed between both mandibles and it was not able to observe ossification in all case. The number of alveoli for incisor teeth were four each mandible, however three alveoli were observed in two cases. There was usually one or occasionally, two foramina mentalia on the lateral surface of the corpus mandibulae below the margo interalveolaris near the symphysis. The incisura vasorum facialium was poorly developed. A distinct groove was observed rostroventral to the foramen mandibulae. The processus condylaris was shown hammer shape, and the caput mandibulae was flat rectangular form. The processus coronoideus was formed a rectangle and curved laterally. The incisura mandibulae was well developed.

Key Words: Metric characteristics, Non-metric characteristics, Mandible, Korean native goat