Health Education Assets Library (HEAL)
 
Filters: Collection: "ehsl_heal"
101 - 125 of 155
Number of results to display per page
TitleDescriptionSubjectCollection
101 Respiratory bronchiolus (human)Stain: Azan. The lumen (1) shows an irregular lining. It is covered by low columnar-cuboidal cells (→). Alveolar pouches (*) within the same lumen are lined by thin alveolar epithelium as found in the surrounding alveoli (2). At (5) small patch of smooth muscle, (4) macrophages with phagocytized c...Respiratory bronchiolus; Columnar epithelium; Cuboidal epithelium; Alveolar epitheliumPoja Histology Collection - Respiratory System Subset
102 Respiratory bronchiolus (mouse)Stain: Hematoxylin and eosin. The lumen (1) shows an irregular lining and is covered by low columnar-cuboidal cells (↓), locally disrupted by a few areas with thin alveolar epithelium as found in the surrounding alveoli (2). Thick arrows point to a row of light-stained Clara cells. At (*) discont...Respiratory bronchiolus; Columnar epithelium; Cuboidal epithelium; Clara cells; Alveolar epitheliumPoja Histology Collection - Respiratory System Subset
103 Respiratory epithelial cells bordering the olfactory region in the nose (human)Electron microscopy. The five respiratory cells (1) show many cross-sectioned cilia (2) in the lumen. Basal bodies (arrow heads) are regularly arranged at the apex of these cells, and in between, short, slender microvilli. Electron-light cytoplasmic protrusions (3) between the cilia are olfactory bu...Respiratory epitheliumPoja Histology Collection - Respiratory System Subset
104 Respiratory epithelial cells in the nasal concha (rat)Scanning electron microscopy. Bushes of long cilia (1) are present on the top of the epithelial cells. In between clusters of microvilli-studded goblet cells (2) are visible.Respiratory epithelium; Pseudostratified epitheliumPoja Histology Collection - Respiratory System Subset
105 Respiratory epithelium in the nasal septum (rat)Electron microscopy. At the left pseudostratified epithelium (1) with ciliated columnar (light) cells and electron-dense basal cells (2). In the middle a wide venous capillary (3) with erythrocytes. At the lower part a serous area of a seromucous gland (4) with dark granules and well-developed rough...Respiratory epithelium; Basal cellsPoja Histology Collection - Respiratory System Subset
106 Respiratory epithelium in the nasal vestibulum (rat)Scanning electron microscopy. Note bushes of cilia (1) on the ciliary epithelium. In between areas of short microvilli-studded bulging or flattened goblet cells. Remnants of erythrocytes (2) are also found on top of ciliated cells.Respiratory epithelium; Nasal vestibulumPoja Histology Collection - Respiratory System Subset
107 Respiratory epithelium of trachea (human, adult, high magnification)Stain: Azan. The red-stained pseudostratified epithelium contains cilia and light goblet cells (white droplets) and a distinct basement membrane that continues in the intense blue-stained lamina propria and the submucosa consisting of fibrous tissue of elastic and collagenous fibers.Tracheal glands; Excretory duct; PerichondriumPoja Histology Collection - Respiratory System Subset
108 Respiratory region of nasal vestibulum (human, higher magnification)Stain: Azan. At the top pseudostratified, ciliated epithelium (1) with a distinct endoepithelial gland (2, pink-stained mucous cells). The proper lamina is cell-rich and draining ducts (3, enclosed by thicker blue-stained borders) and acini of the nasal glands (5) are present here as well as in the ...Pseudostratified epithelium; Nasal glands; Seromucous glands; Endoepithelial glandsPoja Histology Collection - Respiratory System Subset
109 Scheme of peripheral lung parenchym (human, adult)(1) respiratory bronchiolus; (2) alveolar duct; (3) alveolar sac is a virtual sac formed by several alveoli, but continuous with the alveolar duct; (4) alveoli which end in small tips (↓) with elastin interwoven with collagen.Alveolar ductPoja Histology Collection - Respiratory System Subset
110 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
111 Scheme of tracheaC. Trachea (human, adult) magnification x 7.5 objective). D. Trachea (human, adult, detail of rectangle in C) magnification x 85 objective. (12) pseudostratified ciliated epithelium; (13) seromucous tracheal glands; (14) condensed layer of elastic fibers at the border of lamina propria and submu...Pseudostratified epithelium ; Fibroelastic membrane; AdventitiaPoja Histology Collection - Respiratory System Subset
112 Scheme of trachea (human, adult)On top pseudostratified ciliated epithelium (1) with goblet cells followed by a condensed layer of elastic fibres (2) and the transition (*) to seromucous tracheal glands (3) close to the edge of the perichondrium (4) of hyaline cartilage (5).Pseudostratified epithelium ; PerichondriumPoja Histology Collection - Respiratory System Subset
113 Scheme survey frontal section of larynx (human)Stain: Azan. A pseudostratified epithelium covers the mucosa of the laryngeal cavity and vestibulum. At the vocal fold edge (3) the epithelium appears to be nonkeratinizing squamous. The connective tissue is rigidly attached to this edge and merges into the vocal ligament (dense elastic) and vocal m...Vocal ligament; Laryngeal glands; Ventricular foldPoja Histology Collection - Respiratory System Subset
114 Section of trachea (human, adult, high magnification)Stain: Azan. On top: the epithelium (1) is pseudostratified with cilia and goblet cells (white droplets) on a distinct basement membrane (↓, undulating thick deep-red line) followed by a small proper lamina (2). The submucosa (3) starts where the fibrous tissue (elastic fibers reinforced with coll...Pseudostratified epithelium ; Tracheal glands; Excretory duct; PerichondriumPoja Histology Collection - Respiratory System Subset
115 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
116 Small bronchus in the lung (human, adult)Stain: Azan. Pseudostratified epithelium (1) with in between light-stained goblet cells and a blue stained basement membrane (↓) with the proper lamina. The thin smooth muscle layer (2) is purple stained and accompanies the mucosal layer. At (3) a small hyaline cartilage and seromucous bronchial g...Small bronchus; Pseudostratified epithelium; Seromucous glandsPoja Histology Collection - Respiratory System Subset
117 Striated duct of nasal gland (rat)Electron microscopy. At (1) lumen of duct, (2) indicates nucleus of lining epithelial cell. Note the abundancy and palisade-like arrangement of mitochondria (3) in the basolateral regions, in the light microscope visible as a fine striation, hence the name striated duct or intralobular duct. (4) ind...Nasal vestibulum; Nasal glands; Striated duct; Intralobular duct; Seromucous glandsPoja Histology Collection - Respiratory System Subset
118 Surface of lung pleura (gerbil)Scanning electron microscopy of visceral pleura. Alveoli (A) and capillaries (c) with scattered erythrocytes (artifactual due to preparation procedures). At (*) connective tissue and in between erythrocytes. The visceral surface is covered by a continuous sheet of flat squamous mesothelial cells (1,...Visceral pleura; MesotheliumPoja Histology Collection - Respiratory System Subset
119 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
120 Surface of olfactory epithelium in the nose (rat)Scanning electron microscopy. A carpet of fine long threads of olfactory cilia (*). On top of the carpet broken remnants of cilia clotted due to secretion products.Olfactory epitheliumPoja Histology Collection - Respiratory System Subset
121 Surface of the nasal septum (rat)Scanning electron microscopy of anterior part of the nasal septum. The superficial squamous cells of the stratified epithelium are large cells provided with small stubby microvilli. Cell borders are well indicated (↓).Nasal vestibulum; Stratified epitheliumPoja Histology Collection - Respiratory System Subset
122 Surface of trachea epithelium (rat)Scanning electronmicroscopy. There is an abundancy of cilia with interspersed protrusions (↓) of goblet cells due to apical secretion.Pseudostratified epitheliumPoja Histology Collection - Respiratory System Subset
123 Survey frontal section of larynx (human)Stain: Azan. A pseudostratified epithelium covers the mucosa of the laryngeal cavity and vestibulum. At the vocal fold edge (3) the epithelium appears to be nonkeratinizing squamous. The connective tissue is rigidly attached to the this edge and merges into the vocal ligament (dense elastic) and voc...Vocal muscle; Vocal ligament; Laryngeal glands; Ventricular foldPoja Histology Collection - Respiratory System Subset
124 Survey nasal septum (dog)Stain: Hematoxylin and eosin. The nasal septum consists of a cartilage skeleton present as one long (1, cartilago vomeronasalis) and two short plates (2, cartilago septi nasi) with centrally dark-stained areas of chondrocytes. Below, the distal tip is covered with keratinized stratified squamous epi...Squamous stratified epithelium; Nasal vestibulum; Venous sinusoids; Venous plexus; Swell bodiesPoja Histology Collection - Respiratory System Subset
125 Survey of a centrilobular lung emphysema: section of an lobule (human, adult)Stain: Hematoxylin and eosin. The enlargement of large areas of the air spaces (X) is evident due to destruction of the walls of alveoli throughout the lobule.Poja Histology Collection - Respiratory System Subset
101 - 125 of 155