巻号一覧
86 巻 (2009)
- 4 号 p. 111-
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86 巻, 1 号
選択された号の論文の5件中1～5を表示しています
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Shoichi EMURA, Toshihiko OKUMURA, Huayue CHEN2009 年 86 巻 1 号 p. 1-6
発行日: 2009年
公開日: 2009/08/05
ジャーナル フリーThe dorsal lingual surface of an adult owl (Otus scops) was examined by scanning electron microscopy. The tongue of the adult owl was about 1 cm long. Three parts were distinguished in the dorsal surface of the tongue: the apex, the body and the root of the tongue. The conical region between the lingual apex and lingual root was very wide area. The conical papillae of the lingual body were inclined toward the posterior of the tongue. At low magnification of scanning electron microscopy, the desquamated cells were observed in the entire dorsal surface of the lingual apex. The connective tissue cores of the epithelium of the lingual apex showed the rod-shaped protrusions. The border between the lingual apex and body was clear and the small conical papillae were observed in the lingual body. The small and large conical papillae were observed on the lingual body. The many openings of the lingual glands existed in the lingual body and lingual root.抄録全体を表示PDF形式でダウンロード (4033K) -
Koh NAKAJIMA, Grant TOWNSEND2009 年 86 巻 1 号 p. 7-16
発行日: 2009年
公開日: 2009/08/05
ジャーナル フリーThe masticatory muscles are usually classified into four groups: masseter, temporalis, lateral pterygoid and medial pterygoid. The communicating muscle bundle between the temporalis and masseter called the zygomaticomandibular muscle exists. The laminations within these muscles are commonly separated by aponeuroses. Nerves control the action of muscles, so improved understanding about innervation patterns in the masticatory muscles is important in the consideration of muscle function. In this study, we focus on the relationships between the nerves supply and the lamination of masticatory muscles in Phascolarctos cinereus (Koala).
The masseter muscle consists of superficial and deep muscle layers. The superficial muscle layer of the masseter muscle is divided into rostro-lateral and caudo-internal nerve layers. The deep muscle layer of the masseter muscle is divided into rostral, rostro-lateral, medial and caudo-internal nerve layers. The nerves that innervate the zygomaticomandibular muscle are distributed to the lateral area of the coronoid process. The temporalis muscle was divided into internal layer of the coronoid process, a lateral layer of the coronoid process and a posterior layer by the nerve distribution pattern. The medial pterygoid muscle divided into rostro-internal, medial and caudo-lateral nerve layers.抄録全体を表示PDF形式でダウンロード (3827K) -
Akimichi TAKEMURA, Mamoru UEMURA, Isumi TODA, Gang FANG, Masaya HIKIDA ...2009 年 86 巻 1 号 p. 17-24
発行日: 2009年
公開日: 2009/08/05
ジャーナル フリーWe used four ferrets (Mustela putorius furo) and observed these animals dorsal tongue surface morphology via scanning electron microscope and light microscope. In this investigation, we focused on the food habits and discussed the morphology of the lingual papillae from the viewpoint of comparative anatomy. The ferret has conically-shaped filiform papillae in the posterior, middle and anterior region of the tongue body, and circular-distributed filiform papillae in the lingual apex region. The ferret has fungiform papillae with hemispheric shaped summits in the posterior and middle region with square-shaped summits in the anterior and the lingual apex region. The ferret has V-shaped vallate papillae with eight papillae in two lines or 12 papillae in three lines on the tongue root. No foliate papillae were observed on the dorsal tongue surface of the ferret. The ferret belongs to the carnivore family but has a highly developed vallate papillae which are taste bud papillae and many taste glands. Thus we conclude that the ferrets need a large amount of saliva to swallow food because it demonstrates a large number of taste glands.抄録全体を表示PDF形式でダウンロード (6224K) -
Munetaka NAITOH, Kino NAKAHARA, Yuichiro HIRAIWA, Hidetoshi AIMIYA, Ke ...2009 年 86 巻 1 号 p. 25-29
発行日: 2009年
公開日: 2009/08/05
ジャーナル フリーThe location and course of the mandibular canal and multiple mental foramina are important in dental implant insertion and any surgical procedures involving the mandible. The purpose of the present investigation was to assess buccal foramen presence in the mandible using cone-beam computed tomography (CBCT) images.
A total of 84 patients were enrolled in this investigation. Buccal foramen presence in the mandibular body, which was defined as a buccal bone defect of the bony canal penetrating through the buccal cortical bone, was assessed using two- and three-dimensional CBCT images.
Buccal foramen presence, located from the median to molar regions, was observed in 44% of patients. There was no significant difference among gender and age. Also, a buccal foramen showing continuity with the mandibular canal was observed in 7.1% of patients.
Buccal foramen presence in the mandibular body could be assessed in detail using CBCT images.抄録全体を表示PDF形式でダウンロード (1440K) -
Shoichi EMURA, Toshihiko OKUMURA, Huayue CHEN2009 年 86 巻 1 号 p. 31-35
発行日: 2009年
公開日: 2009/08/05
ジャーナル フリーThe dorsal lingual surfaces of adult Japanese pygmy woodpecker (Dendrocopos kizuki) were examined by scanning electron microscopy. The tip of the tongue become sharp and the shape of the tongue showed spear-like structure. In both lateral sides of anterior lingual apex, some conical processes were observed. The epithelium of the surface of the anterior lingual apex was inclined toward the posterior of the tongue. In the posterior part of the lingual apex, there were many needle processes, the apices of which were pointed towards the posterior part of the tongue. There were not the large conical papillae in border region between the lingual body and root. The dorsal surface of the lingual body presented smooth aspect and in both lateral sides of the root of the lingual body, a pair of openings of the lingual glands was observed. The needle processes were observed on the dorsal surface of the lingual root and laryngeal mound. There were observed many large conical papillae on the posterior end of the laryngeal mound.抄録全体を表示PDF形式でダウンロード (3621K)
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