• Maxillofacial Plastic and Reconstructive Surgery
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• 제18권1호
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• pp.120-124
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• 1996

The postoperative maxillary cyst develops as a delayed complication after surgical intervention or Caldwell-Luc operation in the maxillary sinus and was also reported that it could occur after Le Fort I osteotomy. This is also called as surgical cliated cyst because of its lining epithelium is usually lined by a pseudo-stratfied ciliated columnar epithelium. This report represents a case of postoperative maxillary cyst which developed within the anterior of maxilla and in association with nasal mucosa 6 years after a Le Fort I osteotomy. In 1989, 26-year-old male complained of his mandibular prognathism and underwent orthogmathic surgery, Le Fort I osteotomy, bilateral sagittal split ramus osteotomy, partial glossectomy.

• 한국어류학회지
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• 제10권1호
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• pp.115-127
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• 1998

조피볼락의 소화관은 인두, 식도, 위, 장, 항문 그리고 10~11개의 유문수로 이루어져 있다. 유문수는 위의 유문부 말단에서 유래하며 바나나 형태의 맹낭을 형성하고 있다. 어체 체장에 대한 식도에서 항문까지의 소화관 길이의 비 (relative length of gut: RLG)는 1.56(n=10)이다. 식도의 근육층은 바깥쪽의 앓은 종주근층과 안쪽의 두꺼운 환상근층으로 구성된다. 점막상피층은 정단부에 짧은 미세융모를 가진 원주상피로 구성되며, 다수의 점액분비세포들을 가진다. 위의 점막주름은 규칙적으로 배열되었으며, 근육층은 종주근, 사주근, 환상근층으로 구성된다. 위선의 주세포는 관상의 미토콘드리아와 소포체 그리고 전자밀도가 높은 다수의 분비과립을 가지지만, 부세포는 소형의 미토콘드리아와 소포체 그리고 전자밀도가 낮은 액포를 가진다. 유문수와 장의 점막상피층은 주로 원주상피세포, rodlet cell 그리고 dark cell로 구성된다. 흡수기능을 가진 원주세포들은 발달된 미토콘드리아, 소포체, 전자밀도가 높은 과립상 물질, 음작용포 그리고 다포체를 가진다. Rodlet cell은 발달된 cytoplasmic capsule을 가지며 세포질에는 소포체가 잘 발달되어 있다. Dark cell의 세포질에는 전자밀도가 높고, 미토콘드리아들이 잘 발달되어 있다. 원주상피세포는 세포연접이 발달되어 있고, 상부에는 미세융모가 잘 발달되어 있으며, 미세융모의 내부에서는 세포질에서부터 시작된 actin filament를 관찰할 수 있다. 장 상피의 미세융모는 유문수의 미세융모 보다 길며, 배상세포의 수도 정상피에 더 많다.

• 대한수의학회지
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• 제25권1호
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• pp.1-5
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• 1985

The morphological development of the small intestinal tissues of the Korean native goat were observed by light microscopy. Samples were taken from a 60-, 90-, 120-day-old fetus, a newborn goat and a 30-day-old goat. The results were summarized as follows; 1. In the small intestine of 60-day-old fetus, the apexes and sides of villi were covered with a simple columnar epithelium, and intervilous areas and mucosal ridges were still covered with stratified epithelium of two to six cell layers. Mesenchymal tissues formed lamina propria, circular muscle layer and serosa. The numbers of villi per cross section of the small intestine (NVPCS) were 10 to 18. 2. In 90-day-old fetus, intervillous areas and mucosal ridges of the organ were covered with simple columnar epithelium. Goblet cells in epithelium and outer longitudinal muscle layer often appeared. NVPCS were 35 to 60 and Brunner's glands were appeared. 3. In 120-day-old fetus, Brunner's glands of the duodenum and circular connection of outer longitudinal muscle layer were formed, NVPCS were 50 to 87. 4. In newborn goat, Peyer's patches were fully formed and NVPCS were 50 to 87. 5. In 30-day goat, the small intestine was fully matured and NVPCS were 81 to 102.

• 대한수의학회지
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• 제35권1호
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• pp.11-17
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• 1995

The development of colon in fetuses between 60, 90, 120 days of gestation and neonates of Korean native goats was investigated by light scanning electron microscopy. The results were summarized as follows : 1. The colonic wall appeared to be differentiated into the epithelium, lamina propria, submucosa, tunica muscularis and serosa in 60-day-old fetus. 2. The epithelium of the colonic villi was stratified in some areas and simple columnar in others at 60- and 90day-old fetus but was only observed simple columnar epithelium at 120-day-old fetus. 3. The goblet cells and the intestinal glands appeared in the colonic mucosa at 90 days of gestation and continued gradually to increase in number during gestation. 4. The well-developed villi of the colon appeared in columnar shape at 60 days of gestation and increased in length and width until 90 days of gestation but the villi appeared to be shorter and degenerated after 120 days of gestation. At birth only the rudiment trace of the villi remained. 5. The tunical muscularis of the colon was continuously developed during gestation period. The inner circular and outer longitudinal muscle layers were distinguishly observed in the colon of 90-day-old fetuses. 6. Scanning electron microscopically, the colonic villi developed in columnar shape or finger-like of fetuses at 60 days of gestation. The of the colonic villi became degenerated after 120 days of gestation. At birth only the rudiment trace of villi remained.

• Applied Microscopy
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• 제17권1호
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• pp.131-160
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• 1987

Anatomical features of the renal papilla and pelvis and ultrastructures of the epithelium covering these areas in four species of mammals were studied by means of light, scanning and transmission electron microscopy. In terms of the morphology of mammalian kidney types distinguished by Sperber(1944), Pfeiffer(1968) and Schmidt-Nielsen(1977), the kidneys of animal species used in this experiment were; 1) the mouse kidney with the fornix between a long conical papilla and the funnel-shaped pelvis, 2) the guinea pig kidney with the peripelvic column and pelvic pouch between a short conical papilla and the funnel-shaped pelvis, 3) the dog kidney with the peripelvic column and pelvic pouch between the crest-shaped papilla and the funnel-shaped pelvis, and 4) the cattle kidney which is divided into multiple renculi with minor and major calyces and pelvis. The renal papilla was lined with the simple or pseudostratified columnar epithelium which covered the inner zone of the renal medulla. The epithelial cells with numerous short microvilli on the surface contained a few organelles. In the mouse, the fornix was lined with one to two cell-layered cuboidal epithelium which covered the outer zone of the renal medulla and a part of the cortex. The epithelial cells of the fornix with numerous short microvilli or microridges on the surface had well-developed organelles. In the guinea pig, the peripelvic column was lined with the simple cuboidal or low columnar epithelium which covered the outer zone of the renal medulla. The epithelial cells with numerous short microvilli on the surface contained well-developed organelles. The pelvic pouch was lined with the pseudostratified columnar epithelium which was composed of four kinds of cells; the secretory cell with small electron-dense granules (310 nm), the secretory cell with large granules (720 nm) showing various electron densities, the mitochondria-rich cell with a single cilium, and the basal cell. Pelves of the mouse and guinea pig, peripelvic column, pelvic pouch and pelvis of the dog, and minor and major calyces and pelvis of the cattle were lined with the transitional epithelium. The fusiform vesicles in the superficial cells of the epithelium were highly developed in the dog, relatively well developed in the mouse and guinea pig, and poorly developed in the cattle. From the above findings, it is suggested that the transport of solutes and water of the urine in the pelvic cavity can take place through the epithelia covering the renal papilla and fornix of the mouse, papilla and peripelvic column of the guinea pig, and papillae of the dog and the cattle. And specialized cell types in the epithelium of the guinea pig pelvic pouch, two kinds of secretory cells and mitochondria-rich cell with a single cilium, could have peculiar functions in the renal pelvis, respectively.

• Applied Microscopy
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• 제26권4호
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• pp.421-430
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• 1996

The endocrine cells in the midgut epithelium of the Japanese cockroach, Periplaneta japonica were observed by the light and electron microscopy. The midgut epithelium of the last instar larva and adult cockroach consisted of principal columnar cells, regenerative cells, and secretory granular cells. Midgut endocrine cells were positioned basally as a cone-shaped single cell in the epithelium or underneath the regenerative crypt cells. When midgut epithelium grows and the cell composing it transforms, between the endocrine cells and regenerative cells were made desmosome type junction and large vesicular shaped stretches of loose contact. The endocrine cells were characterized by a clear cytoplasm with abundant Golgi complex and numerous secretory granules. The secretory granules in the cell were spherical and electron dense with their diameter of $200{\sim}400nm$. The secretory granules have been observed as discharged by exocytosis on the basal and lateral side of the cell.

• 한국패류학회지
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• 제13권2호
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• pp.175-184
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• 1997

A histochemical and ultrastructural study on the stomach epithelium of a land snail Nesiohelix samarangae was carried out during the period of June 1996 to May 1997. The stomach epithelium is simple columnar dpithelium and is consisted of three types of columnar cells, Type 1 cell which is majority in number has a brush border with microvilli on the free surface of the cell and contains numerous secretory granules supposed to be neutral mucopolysaccharide. Type 2 cell, elongated conical in shape. is rarely found in the dpithelium. This cell also has a brush border with microvilli on its free surface and contains well developed rough surfaced endoplasmic reticulum, Golgi bodies, and secretory granules in various electron densities. This cell seems to produce both of acid and neutral mucopolysaccharides. Type 3 cell, which is morphologically similar to the Type 1 cell, has microvili and cilia on the free surface and exists in group only in the limited regions of the stomach.

• 대한수의학회지
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• 제38권4호
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• pp.686-695
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• 1998

Histological changes, distributions and relative frequencies of bovine Sp-1/chromogranin (bCG)-, serotonin-, gastrin-, cholecystokinin-8(CCK-8)-, somatostatin-, S-100 protein-, polypeptide YY(PYY)- and glucagon-immunoreactive cells were investigated in the gizzard and pylorus of the chicken embryos from 10 days of incubation to hatching. Histologically, the pseudostratified columnar epithelium were observed from 10 days of incubation to 15 days of incubation, thereafter these epithelium were differentiated to simple columnar epithelium, gastric gland and/or mucosal gland. In the gizzard, bCG-immunoreactive cells were observed from 19 days of incubation and S-100 protein-immunoreactive cells were detected from 15 days of incubation to 18 days of incubation. No serotonin-, gastrin-, CCK-8-, somatostatin-, PYY- and glucagon-immunoreactive cells were found in this region. In the pylorus, bCG-, gastrin- and somatostatin-immunoreactive cells were observed from 16 days of incubation respectively, thereafter these cells were increased with ages. CCK-8-immunoreactive cells were detected on hatching and S-100 protein-immunoreactive cells were detected from 16 days of incubation to 18 days of incubation. No serotonin-, PYY- and glucagon-immunoreactive cells were observed in this region.

• 대한수의학회지
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• 제38권4호
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• pp.704-711
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• 1998

With histological changes, ontogeny and relative frequencies of bovine Sp-1/chromogranin(bCG)-, serotonin-, gastrin-, cholecystokinin-8(CCK-8)-, somatostatin-, S-100 protein-, polypeptide YY(PYY)- and glucagon-immunoreactive cells were investigated in the duodenum of the chicken embryos from 10 days of incubation to hatching. Histologically, pseudostraitified columnar epithelium were observed from 10 days of incubation to 14 days of incubation, thereafter these epithelium were differentiated to simple columnar epithelium. $Liberk{\ddot{u}}hn$ glands were observed from 18 days of incubation and goblet cells were detected from hatching. In the duodenum, bCG-immunoreactive cells were detected from 14 days of incubation and increased to 18 days of incubation, thereafter decreased with ages. Serotonin-immunorecative cells were detected from 14 days of incubation and increased with ages. Somatostatin-immunoreactive cells were detected from 14 days of incubation and CCK-immunoreactive cells were detected from 19 days of incubation. No gastrin-, S-100 protein-, PYY-, glucagon-immunoreactive cells were detected in this study.

• Applied Microscopy
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• 제20권1호
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• pp.1-16
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• 1990

The epidermal tissue of Korean planaria Phagocata vivida(Ijima et Kaburaki) is composed of the simple columnar epithelium. The ventral epidermis of this animals is thinner than the dorsal epidermis and has a furrow in the median line in which dark cell is observed. The clear cells which are electron-lucent are located either side of the dark cells. Those are compactly covered with long cilia. The free surface of the latero-ventral epidermis is tightly contacted with the earth and this epidermal free surface has a great number of short cilia, and a lot of C-type of basophilic granule cell are migrated into the cytoplasm of epithelium from mesenchyme passing through the basement membrane and then this granules are put out of latero-ventral free surface. Dorsal epidermis is thickest among the whole epidermis of these animals and the rhabdite granules are more distributed in dorsal epidermis than in ventral epidermis. According to the cytochemical and ultrastructural research, composed epidermis of this planaria are divided into nine type cells, that is, ciliated columnar epithelium, dark cell, mucous cell, rhabdite-forming cell, sunk round cell, A type, B type, C type and D type of basophilic granule cell.