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Normal Histology Return to the Histology main menu. Then click on the checkbox next to the second question and then on the checkbox next to the lettered answer. Diseases of the perinatal period and childhood. There are more than 20 tutorials in specific subject areas. Return to the WebPath main menu. A short description accompanies each image. These computer-aided instructional materials support educational programs in the health sciences. The WebPath® CD-ROM version 10 is resource for self-assessment in general and systemic pathology. For matching questions, the lettered responses may be used once, more than once, or not at all. Endocrine cells / enterochromaffin-like cells: Gastric cardia mucosa with no significant diagnostic alteration, Gastric oxyntic mucosa with no significant diagnostic alteration, Gastric antral mucosa with no significant diagnostic alteration. For multiple choice questions, you will click on the checkbox next to the first question you want to answer, then click on the checkbox next to the lettered answer. Return to the WebPath main menu. However, we cannot answer medical or research questions or give advice. Sections of the WebPath images are available for viewing below by organ system.

We are seeking authors for a variety of topics; 30100 Telegraph Road, Suite 408, Bingham Farms, Michigan 48025 (USA). You have answered right out of questions, for an average of %.

Sections of the WebPath images are available for viewing below by organ system.

For single answer questions, click on the checkbox next to the letter for the answer.

In each organ system is a series of images demonstrating pathologic findings for a variety of disease processes. For self-assessment and self-directed study there are over 1300 examination items. Normal Histology: Tutorials, images, and examination questions in histology to illustrate cells and tissues in a variety of organ sites.

In each organ system is a series of images demonstrating pathologic findings for a variety of disease processes. phosphate, calcium, iron), Produce intrinsic factor, which is critical for vitamin B12 absorption in small bowel (, Secretion highly regulated by extrinsic and intrinsic neuroendocrine system (. Patterns of cellular and tissue injury with inflammation, including acute, chronic, and granulomatous inflammation. Histology Tutorials ; Basic histology is described, along with illustrative images, in this set of short tutorials arranged by organ system. Then click the "Check Answer" button and the answer will appear in the lower frame. in atrophic gastritis), Concentrated within mucous neck region in antrum / pylorus, 50% G cells, 30% enterochromaffin cells, 15% D cells, 5% other, Scattered throughout oxyntic glands in body and fundus, Majority enterochromaffin-like cells; minority enterochromaffin cells, X cells, D cells, There are no visibly (grossly or microscopically) distinct boundaries between mucosal zones / anatomic regions (, Gastric mucosa is very metabolically active, Gastric surface epithelium is normally replaced every 4 - 8 days (, Gastric parietal and chief cells turn over more slowly: every 1 - 3 years (, Undifferentiated stem cells are concentrated in the isthmus / neck of gastric glands throughout the entire stomach, Lamina propria provides structural support (, Structural components: reticulin, collagen and elastin fibers; capillaries and arterioles; nerve fibers; few smooth muscle fibers, Cell types: fibroblasts, histiocytes, plasma cells, lymphocytes; occasional mast cells and eosinophils, Lymphoid tissue is sparse in lamina propria (, Superficial lamina propria with small numbers of lymphocytes (B cells > T cells) and plasma cells, Can see small lymphoid aggregates (no germinal centers) in gastric antrum immediately superficial to muscularis mucosae, Intraepithelial lymphocytes absent or sparse, Lymphatic channels are present within gastric mucosa, generally immediately superficial to muscularis mucosae, Gastric mucosa protects itself against autodigestion / high acidity (, Mucus secretion: mucus is relatively impermeable to H+; also fluid with acid or pepsin exits gastric glands as jets and penetrates surface mucus layer without contacting surface epithelial cells (, Bicarbonate secretion creates pH neutral microenvironment adjacent to cell surface, Intercellular tight junctions prevent back diffusion of H+ and disruptions are quickly repaired, Rich blood flow supplies bicarbonate and nutrients and removes acid, Muscularis mucosae limits injury; if intact, mucosal repair occurs in hours / days versus weeks if not intact, Mucous cells: tightly cohesive columnar cells with basal round to ovoid nuclei in orderly, honeycombed sheets, Chief cells: small cuboidal cells with round, smooth nuclei, fine nuclear chromatin and basophilic cytoplasmic granules in honeycombed sheets, Comparable in appearance to pancreatic or salivary acinar cells, Parietal cells: pyramidal to flask shaped cells with round nuclei, coarse nuclear chromatin and abundant intensely eosinophilic cytoplasm.

Laboratory Medicine Curriculum: follow this link for improving knowledge of laboratory medicine principles vital to all practicing physicians. The multiple choice questions in the General Pathology, Organ System Pathology, Clinical Pathology, and Extended Matching banks have three formats. Sets of 30 questions cover a broad range of subjects.

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