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176 Lymphocyte (peripheral blood, human)Electron microscopy. (Cytotoxic) lymphocyte (A) with a juxta-nuclear Golgi area (3) and centrioles (2), few mitochondria (4) and sparsely profiles of rough endoplasmic reticulum (RER). Dense-stained granules (1) are present. The surface exhibits short blunt microvilli. The right lymphocyte in (B) ha...Poja Histology Collection - Blood & Bone Marrow Subset
177 Hypersegmented neutrophil in peripheral blood smear of a hyperthermic patient (human)Stain: May-Grnwald-Giemsa (MGG). In hyperthermic patients the neutrophils (1) show hypersegmentation of the nuclear lobe (>5) and a pyknotic appearance. The nucleus appears like a bunch of grapes. (2) immature band neutrophil (juvenile unsegmented neutrophil). Hypersegmentation may also occur in meg...Poja Histology Collection - Blood & Bone Marrow Subset
178 Pleiomorph bone marrow smear (human)Stain: May-Grnwald-Giemsa (MGG). Low power view of a normal bone marrow smear. The bone marrow is pleiomorph and contains all cell types such as a large reticulum cells (1) with many granules or lysosomes (phagocytosis); myeloid cells (2); and erythroblasts (3).Poja Histology Collection - Blood & Bone Marrow Subset
179 Promyelocyte in bone marrow smear (human)Stain: May-Grnwald-Giemsa (MGG). The large promyelocyte contains nucleoli, coarse chromatin pattern, and abundant azurophilic granules in a basophilic cytoplasm. (2) A neutrophilic band form leukocyte with folded nucleus.Poja Histology Collection - Blood & Bone Marrow Subset
180 Basophilic erythroblast and myeloid cells in bone marrow smear (human)Stain: May-Grnwald-Giemsa (MGG). (1) early basophilic erythroblast. (2) eosinophilic metamyelocyte. (3) neutrophilic myelocyte. (4) two band neutrophils.Poja Histology Collection - Blood & Bone Marrow Subset
181 Punch biopsyPunch biopsy is excellent for sampling a skin disease that has multiple essentially identical lesions, or sampling a lesion within the skin. It is designed for full thickness skin biopsy, and is not an effective tool for biopsying the fat. When using it, it should be held as shown, should be spun ve...Knowledge Weavers Dermatology
182 Eye - LensThe shape of the lens changes during the process of accommodation. When the eye focuses on an image while reading, the smooth muscle of the circular ciliary body contracts, reducing tension on the zonular fibers (collectively called the suspensory ligament), causing the lens to bulge, increasing its...canal of SchlemmUCLA Histology
183 Central Nervous SystemGolgi impregnation reveals the cell body and the apical and basal dendrites of a pyramidal cell. This cell derives its name from the shape of its cell body. The apical dendrite is a short tapering process with numerous small dendritic spines, and is directed towards the surface of the cortex. The ba...Golgi impregnation; pyramidal cell; Brain; Central Nervous SystemUCLA Histology
184 Cardiac MuscleLocate and identify a number of anastamosing branches, central nuclei, and intercalated disks in this section of cardiocytes. Also note the abundant connective tissue spaces between cardiocytes. These areas contain many capillaries, providing the cardiocytes with an excellent vascular supply. UCLA H...Cardiac Muscle; HeartUCLA Histology
185 Lymph NodesThis image from the parenchyma of the lymph node shows phagocytic macrophages crammed with carbon. Few lymphocytes are visible. The connective tissue stroma contains reticular fibers, fibroblasts, and reticular cells. UCLA Histology Collection.Lymph Node; lymphocytes; macrophageUCLA Histology
186 Epithelium - CorneaOn the outer surface of the cornea, there are many cell layers; therefore it is stratified. Because the outermost layer of cells is flattened, these are termed squamous. Hence this is called stratified squamous epithelium. UCLA Histology Collection.stratified squamous epitheliumUCLA Histology
187 SkinModerate power view of the base of a hair follicle in skin. Good view of the dermal papilla and other coverings of the hair follicle bulb. UCLA Histology Collection.SkinUCLA Histology
188 EarThe thin skin of the external ear canal with hair follicles. Note the presence of the cartilage of the auricle. UCLA Histology Collection.Ear; External Ear CanalUCLA Histology
189 Carcinoma, colonCarcinoma, colonKnowledge Weavers Pathology
190 BreastThe male nipple has a rudimentary duct system. The epidermis is thin with enlarged dermal papillae. The bundles of smooth muscle found within the dermis allow the nipple to become erect. In female this response facilitates feeding. The lactiferous duct lined by a cubiodal epithelium, arise from the ...Breast; male nippleUCLA Histology
191 KeloidBefore injecting the keloid with the corticosteroid, I recommend injecting local anesthetic into the underlying fat, and waiting about five minutes for the anesthetic to take effect. The anesthetic should not be injected into the keloid as this reduces the amount of space into which one can inject t...Knowledge Weavers Dermatology
192 Glands of GI TractThis images illustrates a section of the liver stained with PAS to visualize the glycogen storage in hepatocytes. Hepatocytes have granules in their cytoplasm due to the presence of stored glycogen. Shown here are also sinusoids and a central vein. UCLA Histology Collection.gastrointestinal tract; glycogen; Liver; pas stainUCLA Histology
193 Gastrointestinal TractThis image shows finger-like villi (made up of epithelium and lamina propria), the crypts of Lieberkuhn (invaginations of the epithelium), and the muscularis mucosae. To the left of the muscularis mucosae is the submucosa of the plica circularis. UCLA Histology Collection.crypts of Lieberkuhn; gastrointestinal tract; small intestineUCLA Histology
194 UterusThe luminal surface of the secretory endometrial glands is irregular because of its secretory products. The stromal cells are nondescript but remember that they become decidual cells after implantation of the embryo. Contrast these endometrial glands with image 222-10-1. UCLA Histology Collection.secretory endometrium; UterusUCLA Histology
195 SuturingThis demonstrates the deep dermal suture properly placed with the loop, which will be just on the under-surface of the dermis, and the knot will be buried well within the fat. This will prevent the knot from extruding through the dermis and out through the wound.Knowledge Weavers Dermatology
196 SuturingThe loop is then tightened with the hands in their natural position. This is done four times and then the suture is cut leaving suture ends at .5 cm long.Knowledge Weavers Dermatology
197 PituitaryRelatively low power view of the pars distalis abutting against the pars nervosa. There are some hypophyseal cysts shown. UCLA Histology Collection.PituitaryUCLA Histology
198 Tearing actionThey are then opened which creates a tearing action.Knowledge Weavers Dermatology
199 Heparan sulfates in the terminal sac-period of the lung (mouse, fetus)Stain: fluorescence microscopy with anti-heparan sulphate antibody (a phage-display antibody, LKiv69). Heparan sulfates are linear polysaccharides that belongs to the group of the glycosaminoglycans (GAGs). The sulphated saccharide domains provide numerous docking sites for protein ligands. These GA...Bronchioli; Air spaces; Terminal sac periodPoja Histology Collection - Respiratory System Subset
200 Lung capillaries and air-blood barrier (rat)Electron microscopy. Two neighboring capillaries (C) and the alveolar spaces (A). The endothelial cell (1) of the upper capillary contains an organelle-rich cytoplasm, a centriole (2), contractile filaments (↓) and electron-dense membrane-bound granules, the so-called Weibel-Palade bodies. These b...Poja Histology Collection - Respiratory System Subset
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