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TitleDescriptionSubjectCollection
1 The Clinical Anatomy of Type II SLAP LesionsObjectives: 1.To describe the clinical anatomy associated with Type II SLAP lesions. 2.To define and illustrate a Type II SLAP lesion using a cadaver specimen. 3.To review coomon mechanisms of injury that may lead to a SLAP II injury.Clinical Anatomy Type II Slap LesionsHEAL Peer Reviewed Collection
2 Granuloma in bone marrow smear (human)Stain: (A) Hematoxylin and eosin. (B) Silver stain. Granuloma composed of giant cells, epithelioid cells, lymphocytes and reticular fibers (B). Granulomas in the bone marrow may be found in various inflammatory reactions as well as hematological and non-hematological malignancies and as a reaction t...Poja Histology Collection - Blood & Bone Marrow Subset
3 Circulating phagocytic cellsElectron microscopy, a set of the ultrastuctural features of different types of phagocytic cells. Top left side (A): Circulating monocyte with phagocytized latex particles (peripheral blood, human). The nucleus is large and with a long small indentation. Close to the nucleus several individually in...Poja Histology Collection - Blood & Bone Marrow Subset
4 Neutrophilic metamyelocyte in peripheral blood smear (human)Stain: May-Grnwald-Giemsa (MGG). The neutrophilic metamyelocyte is differentiating nearly to a juvenile unsegmented (band form) neutrophil, but the nuclear chromatin is only partly condensed. Hardly visible dust-like granules can be observed in the still pale bluish cytoplasm.Poja Histology Collection - Blood & Bone Marrow Subset
5 : Lymph node (rat)Electron microscopy. A low magnification of a part of the medulla showing medullary cords surrounded by labyrinthine medullary sinus (*). In this picture the medullar cord runs from left bottom corner to right top corner, and is lined by flat reticular cell types. Within the cord one finds a star-sh...medulla; electron microscopy; sinusoidPoja Histology Collection - Lymphatic Tissues and Organs Subset
6 An introduction and literature references to the Human Placenta as part of the POJA collection on FEMALE REPRODUCTIVE ORGANSAn introduction and literature references to the Human Placenta as part of the POJA collection on FEMALE REPRODUCTIVE ORGANS (PDF File)placenta; references; prefacePoja Histology Collection - Placenta
7 Anchoring villi (human placenta, early midpregnancy)Stain: Hematoxylin -azophloxine. Survey (A) and detail (B). The maternal side at the bottom shows reddish matrix-type fibrinoid accumulations (1) (Rohr's fibrinoid layer) close to an anchoring villus (2) and the cytotrophoblastic cell columns (3). The anchoring villus is lined by cytotrophoblast...placenta; chorionic villi; Hofbauer cell; anchoring villus; cytotrophoblastPoja Histology Collection - Placenta
8 Anchoring villi (human placenta, early midpregnancy)Stain: Hematoxylin -azophloxine. The maternal side at the bottom shows reddish matrix-type fibrinoid accumulations (1) (Rohr's fibrinoid layer) close to an anchoring villus (2) and a cytotrophoblastic cell column (3). The anchoring villus is lined by cytotrophoblasts (4) which are covered at th...placenta; anchoring villus; fibrinoid; deciduas; cytotrophoblastPoja Histology Collection - Placenta
9 Complete hydatidiform mole (human)Stain: (A) Hematoxylin-eosin. (B+C) Immunoperoxidase staining with diaminobenzidin (DAB) and hematoxylin counterstaining for keratin 7 (OVTL 12-30 antibody). (A)Trophoblast cells surround the dilated chorionic villi (1), with centrally large amounts of edematous mesenchymal stroma with almost no b...trophoblast; complete hydatidiform mole; placenta; villus; immunohistochemistry; keratin-7Poja Histology Collection - Placenta
10 Calcified bacterial plaque in palatine tonsil ('gut-associated lymphatic tissue' or GALT) (human)Stain: Azan. A tonsillar crypt lined by squamous epithelium (2) that is infiltrated with lymphocytes (1). It is a normal finding that within the crypts free cells, plugs of lymphocytes (1) and calcified epithelial debris as well as colonies of oral commensally bacteria are present. (3) shows a calc...bacterial plaquePoja Histology Collection - Lymphatic Tissues and Organs Subset
11 Cortex of lymph node (human)Stain: Azan. The cortex of the lymph node comprises the (secondary) follicles with germinal centres (1) and corona or mantle zone (2), all filled with B lymphocytes. The paracortical area (3) below the follicles largely comprises T cells. Afferent lymph vessels enter via the capsule (6) into the m...cortex; paracortexPoja Histology Collection - Lymphatic Tissues and Organs Subset
12 Epithelial lining of trachea and bronchiolus (mammals)Left side trachea: Columnar ciliated cells (1) with up to 200 motile cilia with an organelle-rich apex and in the middle a goblet cell (2) with accumulation of mucus secretion granules in the apex. Note that all epithelial cells (i.e., junctions) contact the basal lamina. Four basal cells (3) do not...Bronchiolus; Pseudostratified epithelium; Ciliated epithelium; Clara cells; Basal cells; Neuro-endocrine cellsPoja Histology Collection - Respiratory System Subset
13 Air-blood barrier in the lung (mammals)Scheme electron microscopy. (1, ↓) Represents type I pneumocytes lining alveolar spaces (A). Cell (2) represents a free alveolar macrophage. The type II pneumocyte (3) is adherent to type I pneumocyte extensions (note junctional connection), and contains multilamellar bodies (surfactant). A myofib...Pneumocyte type I ; Pneumocyte type IIPoja Histology Collection - Respiratory System Subset
14 Neuroepithelial body in terminal bronchiolus (golden hamster)Electron microscopy. Three epithelial cells, as part of the N(euro) E(pithelial) B(ody), contribute to a cluster of neuroendocrine cells. They belong to the Amine Precursor Uptake and Decarboxylation cell system so-called APUD cells. The dense-core granules (↓) contain among others dopamine or ser...Terminal bronchiolus ; Neuro-endocrine cellsPoja Histology Collection - Respiratory System Subset
15 Keratin 7 in the bronchial epithelium of the lung (human, adult)Stain: anti-keratin 7 antibody (Pan-Ck 7) immunoperoxidase staining (with aminoethylcarbazole (AEC) substrate). The epithelium of the bronchus (1) stains dark brown-red after the reaction with AEC indicating a positive reaction for cytokeratin 7. This antibody can be used in the study of development...Bronchiolus; Immunoperoxidase; Immuno-reactionPoja Histology Collection - Respiratory System Subset
16 Surface of olfactory epithelium (rat)Electron microscopy. Bottom left shows an olfactory bulb (1, vesicle) with cross-sectioned basal bodies. Right side part of the apex of a supporting cell (2) with microvilli (3). Parallel to the surface of the epithelium one long olfactory cilium (4) and several other cross-sectioned ones are detect...Olfactory epithelium; Olfactory vesiclePoja Histology Collection - Respiratory System Subset
17 Alveolar cells in the lung (mammals)Scheme electron microscopy. (5) alveolar space; (6) type I Pneumocyte; (7) basal lamina; (8) myofibroblast; (9) collagen and elastin fibers; (10) mesothelial cell of the visceral pleura; (11) capillary with erythrocyte; (12) endothelial cell lining the capillary; (13) type II pneum...Pneumocyte type I ; Pneumocyte type I IPoja Histology Collection - Respiratory System Subset
18 Scheme of the epiglottis (human, adult)The laryngeal side of the epiglottis (1) is covered with respiratory epithelium, while the lingual side (2) is similar to the oral cavity epithelium (squamous type). The transitional zone to respiratory epithelium is marked by (3). The scaffold consists of elastic cartilage (4). Seromucous laryngea...Laryngeal glands; Oral cavityPoja Histology Collection - Respiratory System Subset
19 Epithelial lining of bronchiolus in the lung (rat)Scanning electron microscopy. Bushes of cilia indicate the presence of ciliated cells (1). Clustered non-ciliated cells (2, Clara cells) are dome-shaped with stubby microvilli at the surface, they protrude into the lumen to the tips of the cilia.Bronchiolus ; Ciliated epithelium ; Clara cellsPoja Histology Collection - Respiratory System Subset
20 Transitional region of epiglottis (human, high magnification)Stain: Hematoxylin and eosin. Transition of squamous epithelium into pseudostratified epithelium. Note diapedesis of lymphocytes (darker stained rounded cells) through the epithelial barrier (→). The proper lamina presents some lymphocyte infiltration.DiapedesisPoja Histology Collection - Respiratory System Subset
21 Keratin 7 in the lining alveolar epithelium of the lung (human, adult)Stain: anti-keratin 7 antibody (Pan-Ck 7) immunoperoxidase staining (with aminoethylcarbazole (AEC) substrate). Both alveolar epithelial cell types I (1) and II (2) stain dark brown-red after the reaction with AEC indicating a positive reaction for cytokeratin 7. Note the white (non-stained) capilla...Pneumocyte I; Pneumocyte II; Imunoperoxidase; Immuno-reactionPoja Histology Collection - Respiratory System Subset
22 Arbor bronchialis, the bronchial tree (human, adult)Resin corrosion cast of the lower trachea and bronchial tree (posterior aspect). The lobar and segmental bronchi and their main branches are coloured, different colours indicate areas supplied by different segmental bronchi. White-coloured lower trachea (Tr) divides into two principal bronchi (Bp)...Segmental bronchi ; MacroscopyPoja Histology Collection - Respiratory System Subset
23 Respiratory bronchiolus (human)Stain: Hematoxylin and eosin. A longitudinal section shows the lumen of a respiratory bronchiolus (1) with an irregular lining. It is covered by low columnar-cuboidal cells, a few pouches within the same lumen are lined by thin alveolar epithelium as found in the surrounding alveoli (2). Thin arrows...Respiratory bronchiolus; Columnar epithelium; Cuboidal epithelium; Clara cells; Alveolar epitheliumPoja Histology Collection - Respiratory System Subset
24 Nasal concha (dog, isolated turbinate bone)Stain: Hematoxylin and eosin. This concha (turbinate with red-black-stained bone (1), is covered by a thin respiratory mucosa (3) and by a thick olfactory mucosa (2, arrow). Within the respiratory epithelium light stained goblet cells are visible between the low columnar/cuboidal epithelial cells (c...Conchae nasales; Olfactory epithelium; Respiratory epitheliumPoja Histology Collection - Respiratory System Subset
25 Small bronchus (golden hamster)Electron microscopy. Two ciliated cells with nuclei (1). Supranuclearly electron-dense lysosomes (2, lipofucsin) are present, the apical parts contain mitochondria (3) and cross-sections of cilia (4) and microvilli (5) are visible in the lumen (*). Two mucoid goblet cells with packed secretion gran...Ciliated epitheliumPoja Histology Collection - Respiratory System Subset
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