• Title/Summary/Keyword: anatomical structure

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The Manufacture of Calligraphy-Woodcarving Artwork Using Anatomical Micro Structure of Wood (목재의 미세조직구조를 이용한 서각작품 제작)

  • Ryu, Hyun-Soo;Chong, Song-Ho;Byeon, Hee-Seop
    • Journal of the Korea Furniture Society
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    • v.20 no.1
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    • pp.15-20
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    • 2009
  • Marvelous calligraphy-woodcarving artwork was made by using the mysterious beauty of anatomical structure of wood. The wooden artwork uses not only beautiful external appearance of wood, but it also uses the mysterious beauty of anatomical micro structure of wood which can only be observed through optical microscope or scanning electron microscope. The characteristics of anatomical structure of wood were presented through various carving techniques. The used wood species for the artwork include Quercus acutissima Carruth., Cinnamomum japonicum Sieb., Betula davurica PALL, Magnolia kobus A.P.DC, Populus maximowiczii HENRY, Betula schmidtii REGEL and Plerocaya stenoptera DC. These various types of woodcarving techniques are anticipated to be applied to the techart marketing for architecture as a field of environment art.

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Anatomy of the clitoris: the corona of the glans clitoris, clitoral coronal papillae, and the coronopreputial frenulum

  • Matthew J. Zdilla
    • Anatomy and Cell Biology
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    • v.57 no.2
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    • pp.183-193
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    • 2024
  • The corona of the glans clitoris is a clinically important yet poorly understood anatomical structure. There has been longstanding confusion regarding the prevalence of the corona of the glans clitoris and, moreover, its very existence. Therefore, this anatomical study assesses the prevalence of the corona of the glans clitoris and the gross anatomy of the proximal glans clitoris. Anatomy was assessed in 104 female donor bodies ranging in age from 50 to 102 years with an average age-at-death of 78.1±10.9 years (mean±SD). All clitorises (100%; 104:104 dorsums and 100%; 208:208 sides) were found to have a well-defined clitoral corona. Three of 104 (2.9%) coronas possessed grossly visible, outward-projecting, bluntly rounded papillae. Some donors possessed a coronopreputial frenulum. Clitoropreputial adhesions were common and associated with clitoral pearls. Clitoral pearls were identified in 37.8% (14:37) of unembalmed donors and observed to create clitoral craters, structural deformations in the surface of the corona and glans. The results of this study suggest that the corona of the glans clitoris is a ubiquitous anatomical structure. The clitoral coronal papillae and coronopreputial frenulum are novel, previously undescribed, anatomical structures. This study identifies that the corona of the glans clitoris is prone to pathological processes such as clitoral pearl formation and clitoral deformation. In addition to novel anatomical findings, the results of this study call attention to the need for life-long clitoral examinations. Furthermore, the corona of the glans clitoris should be regularly included in anatomical texts and accurately depicted in anatomical illustrations.

A Comparative Study for Anatomical Terms in Oriental and Western Medicine (사람해부학 용어에 대한 한·양방 비교 연구)

  • Kim, Soo-Myung
    • Journal of Haehwa Medicine
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    • v.5 no.2
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    • pp.449-461
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    • 1997
  • Anatomical terms is very important for the whole medical area. In the past, medical student have confused with the anatomical terms which were base on Japanish-Chinese. So they have to be made easily for reading and learning. Fortunately the anatomical terms in Korean had completely made through the fourth edition. According to the oriental law and customs human dissection was prohibited, therefore human anatomy naturally undeveloped. In this study, on the view of the Korean terms carried out the comparison between oriental and western anatomical terms in osteology and splanchnology. The oriental anatomical terms expressed with only looking at and touching the part of the human body. The gross structure of the osteology, is similar to oriental and western medicine but there's no detailed nomenclature of the bone. Instead of it, they expressed connection to acupuncture point or disease in the human body. So it's difficult to find out the anatomical terms of the splanchnology like recent ones.

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A Study on Pullout Characteristics of Pedicle Screw Design Considering Anatomical Structure of the Lumbar Spine (척추의 해부학적 요소를 고려한 척추경 나사못 디자인의 Pullout 특성 연구)

  • Yoo, Kyeong-Joo;Park, Kwang-Min;Ahn, Kyoung-Gee;Ahn, Yoon-Ho
    • Journal of Biomedical Engineering Research
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    • v.42 no.1
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    • pp.1-6
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    • 2021
  • Recently, various types of pedicle screws have been developed considering the anatomical structure of the spine. The purpose of this study was to evaluate the pullout stiffness and strength of two types of commercial pedicle screws. The design of two type screws were single pitched thread (ST) pedicle screw and dual pitched thread (DT) pedicle screw, respectively. The tests were conducted in accordance with the ASTM standards using polyurethane (PU) test blocks which has anatomical structure of the spine. There was no significant difference in pullout stiffness between two types of screw. However, DT exhibited higher pullout strength than ST (p<0.05). Pedicle screw with dual pitched thread showed higher pullout strength without decrease in pullout stiffness compared to the standard pedicle screw. In conclusion, dual pitched thread design of the pedicle screw is considered to be more suitable than the single pitched thread for the anatomical structure of the spine.

Clinical anatomic consideration of the superficial layer of the masseter muscle for botulinum toxin injection (보툴리눔 톡신 주사를 위한 깨물근 얕은층의 임상해부학적 고찰)

  • Lee, Hyung-Jin;Kim, Hee-Jin
    • The Journal of the Korean dental association
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    • v.55 no.5
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    • pp.365-369
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    • 2017
  • In clinical dentistry, botulinum toxin is generally used to treat the square jaw, bruxism, and temporomandibular joint diseases. Recently, this procedure has been expanded and applied for cosmetic purposes, and it is becoming a key task to be aware of the precise anatomical structure of the target muscles to be cautious during treatment and how to prevent side effects. Therefore, the purpose of this study is to observe the anatomical structure of the superficial layer of masseter muscle and to provide a most effective botulinum toxin injection method through clinical anatomical consideration. It was observed that the muscle belly of superficial part of the superficial layer was originated from the deep to the aponeurosis of masseter muscle and descend, then changed gradually into the tendon structure attaching to the inferior border of the mandible. In this study, we named this structure deep inferior tendon. This structure was observed in all specimens. We conclude that the use of superficial layer and deep layer injection should be considered to prevent paradoxical masseteric bulging in consideration of the deep inferior tendon of superficial part of superficial layer of masseter muscle.

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Anatomical Structures and Fiber Quality of Four Lesser-Used Wood Species Grown in Indonesia

  • MARBUN, Sari Delviana;WAHYUDI, Imam;SURYANA, Jajang;NAWAWI, Deded Sarip
    • Journal of the Korean Wood Science and Technology
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    • v.47 no.5
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    • pp.617-632
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    • 2019
  • This study aimed to investigate the anatomical structure and fiber quality of four lesser-used wood species namely Benuang (O. sumatrana), Duabanga (D. moluccana), Pisang Merah (H. hellwigii), and Terap (A. odoratissimus). This study evaluated its suitability for raw material in pulp and paper manufacturing. The anatomical structure was observed macro- and microscopically. Macroscopic structures were observed directly to the wood samples, while microscopic characteristics were observed through microtome specimens. Fiber dimension was measured through macerated specimens and fiber quality was analyzed following the Rachman and Siagian's method. Results showed that these four timber species have similarity in the indistinct growth ring, diffuse porous in a radial pattern, rounded solitary vessel outline, 1 to 3 cells of ray width, deposits within the rays, fiber length, and cell wall thickness. Differences were found on vessel diameter, vessel grouping, vessel frequency, tyloses existence, type of axial parenchyma, and ray height. Based on fiber length and its derived values, the wood fibers of all species studied are suitable for pulp and paper manufacturing. They belong to the II quality class. The produced pulp and paper would have good quality, especially in tensile, folding, and tear strength. To promote their utilization, silviculture aspect of these four species has to be well understood.

Development and Implementation of 3D Anatomical Exercise Encyclopedia Application Optimized for Korean Users

  • Young-Ju Jeong;Eun-Chong Park;Sang-Hyun Lee
    • International Journal of Advanced Culture Technology
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    • v.12 no.3
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    • pp.262-270
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    • 2024
  • In modern society, with the growing emphasis on health and fitness, the need for education on proper exercise methods is increasingly highlighted. The purpose of this study is to develop a 3D anatomical exercise encyclopedia application optimized for Korean users, enabling them to clearly understand the anatomical structure of exercises and easily learn proper exercise methods. In this study, a user-friendly interface was developed using Flutter and Unity, and a feature was added that allows users to intuitively check muscle activation through 3D models. Users can easily understand the anatomical structure of the exercise areas through 3D models that can be zoomed in, out, and rotated, and can easily access information such as exercise definitions, exercise sequences, agonist muscles, and synergist muscles. As a result of the study, most of the 21 users who used the application showed high satisfaction with the intuitiveness of the interface and the accuracy of the information, suggesting improvements such as the addition of exercise items and muscle highlighting effects, confirming the potential for developing an exercise encyclopedia application optimized for users.

Evaluation of Effectiveness of Anatomical Rotation Change Image by Aid Tool in Shoulder MRArthrography (Shoulder MRArthography 검사 시 보조기구를 이용한 해부학적 회전 변화 영상에 대한 유용성 평가)

  • Kim, Hyeong-Gyun;Jung, Jae-Eun;Jung, Hong-Moon
    • Journal of the Korean Society of Radiology
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    • v.6 no.4
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    • pp.299-303
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    • 2012
  • Shoulder MRArthrography was performed to get an accurate diagnosis about complex anatomical structure in shoulder joint. We carried out how the changes of anatomical rotations in shoulder joint could bring certain diagnosis effects on MRI images for various shoulder humerus positions; Neutral position, Internal rotation position and External rotation position. In addition, we prepared an aid tool in oder to maintain the right posture of a patient. This aid tool was made by adapting Modeling Design Program. By virtue of this aid, we obtained the following result. Shoulder MR Arthrography by the External rotation position for anatomical structure diagnosis was the most suitable in diagnostic evaluations of important anatomical structures in shoulder joint such as Biceps tendon, Supera-spiatus tendon, Sub-scapularis tendon, Labrum and Sub-acromial space.

Research Trends on the Human Anatomy Structure of Acupoints Using Imaging Devices in China (영상기기를 활용한 경혈의 인체 해부구조에 대한 중국 내 연구 동향)

  • Soyoung Kim;Purumea Jun;Sanghun Lee
    • Korean Journal of Acupuncture
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    • v.41 no.3
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    • pp.68-78
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    • 2024
  • Objectives : Acupuncture is recognized as a significant therapeutic method in traditional medicine, underscoring the importance of precise understanding of acupoint locations and anatomical structures. The aim of this study is to investigate trends in anatomical studies of acupoint using imaging devices in China through literature search. Methods : This study utilized Chinese databases CNKI, WANFANG, and WEIPU to search for articles. The analysis focused on the publication status of articles by year, types of imaging devices, research subjects and methods, and criteria for acupoint locations. Results : A total of 15 articles were selected in this study. The first article was published in 1996. Articles were published at a rate of less than one per year until 2020, but rapidly increased to three and six in 2021 and beyond. Studies using ultrasonography were the most prevalent, followed by Magnetic Resonance Imaging(MRI) and Computed Tomography(CT) scans. There were eight studies conducted on healthy volunteers, six studies observing both healthy volunteers and cadavers, and also studies involving patients with specific medical conditions. Various criteria were employed to determine acupoint locations, including the WHO standard, national administration of traditional Chinese medicine nomenclature and location of acupoints, as well as references from literature. Conclusions : In China, researches are actively being conducted to observe the anatomical structure of acupoints using various imaging devices. Recent trends indicate an increase in studies utilizing ultrasound and there is a growing focus on exploring the locations that elicit the sensation of "obtaining qi" rather than just the anatomical locations of acupoints. Through this study, it is hoped that the appropriate utilization of imaging devices will lead to various studies aimed at elucidating the characteristics of the anatomical tissues actually stimulated during acupuncture, thereby increasing the safety and efficacy of acupuncture treatments.

Analytic Study of 362 Bile Cytologic Materials (담즙 세포학 표본 362건의 검색)

  • Koh, Jae-Soo;Ha, Chang-Won;Myong, Na-Hye;Cho, Kyung-Ja;Jang, Ja-June
    • The Korean Journal of Cytopathology
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    • v.2 no.2
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    • pp.73-78
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    • 1991
  • A total of 362 bile samples from 104 patients with evidence of biliary tract obstruction were submitted for diagnostic cytology from January, 1989 to April, 1991. The patients were classified based on the obstructive cause, and the cytologic results were reviewed. 298 of the specimens were from patients with intrabiliary malignant structure, and 17 were from patients with extrabiliary malignant compression or benign biliary obstruction. Bile cytology was positive for carcinoma in 42 samples from patients with intrabiliary malignant stricture, and the diagnostic sensitivity was 14%. There were no false positive cases. We concluded that the cause of low sensitivity was degenerative change of cell due to prolonged sampling time. What is noteworthy was the high prevalence of Clonorchis sinensis eggs, being detected in 25 patients with intrabiliary malignancy, supporting the association between clonorchiasis and biliary tree malignancy.

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