Korean Journal of Veterinary Research 2005;45(4):477-483.
Morphological study on the development of the tongue in fetuses and neonates of Korean native goat (Capra hircus)
Cyu-Hyen Cho1, Chong-Sup Kim1, Phil-Ok Koh1, Byoung-Il Kang1, Jong-Hwan Lee2, Chung-Kil Won1
1Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University
2College of Veterinary Medicine, Konkuk University
한국재래산양(Capra hircus)의 태아 및 신생아의 혀 발달에 관한 형태학적 연구
조규현1, 김종섭1, 고필옥1, 강병일1, 이종환2, 원청길1
1경상대학교 수의과대학 동물의학연구소
2건국대학교 수의과대학
Abstract
This study was carried out to investigate the morphological development of the tongue in the 60-, 90- and 120-day-old fetuses and neonates of Korean native goats by light microscopy. In 60-day-old fetuses, the tongue tissues were differentiated into epithelium, lamina propria, and muscle layer. The primordia of filiform, conical, lentiform, fungiform, and vallate papillae appeared by this time, and rudiments of taste buds were observed in the epithelia of the primordia gustatory papillae. The dorsal lingual epithelia were PAS positive. Collagenous fibers and blood vessels were present in the lamina propria. In 90-day-old fetuses, the gustatory glands were moderately positive for PAS and muscle fibers, and connective tissues were developed. In 120-day-old fetuses, many taste buds were observed in the gustatory papillae. The muscle bundles, collagenous fibers, blood vessels and gustatory glands were well developed. In neonates, over 40 taste buds were found in a transverse section of the vallate papillae. Muscle layers, blood vessels, collagenous fibers and gustatory glands were very well developed.
Key Words: development, Korean native goat, papillae, taste bud, tongue


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