The Health Education Assets Library (HEAL) is a collection of over 22,000 freely available digital materials for health sciences education. The collection is now housed at the University of Utah J. Willard Marriott Digital Library.
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Filters: Collection: "ehsl_heal"
| Title | Description | Subject | Collection | ||
|---|---|---|---|---|---|
| 76 |
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Line Isolation Monitor | This resource features a photograph of a Line Isolation Monitor. Isolated power systems are frequently used in Operating Rooms and Intensive Care Units. Such systems use an isolation transformer system so that neither of the two output lines powering the equipment offers any voltage with respect to ... | Line Isolation Monitor; Electrical Safety | HEAL Open Review Collection |
| 77 |
 |
Lung carcinoma metastatic to adrenal gland | This is a gross photograph of a non-small cell carcinoma metastatic to the adrenal gland. | HEAL Reviewed Collection | |
| 78 |
 |
Lymphoblast | Scheme electron microscopy. The lymphoblast shows a high nucleus-cytoplasm ratio, it is a large cell (10-20 μm) with a large nucleus and distinct nucleolus. Apart from numerous ribosomes, a small juxta-nuclear Golgi area the cytoplasm is scanty with very few organelles. | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 79 |
 |
Lymphoblast (spleen, rat) | Electron microscopy. Interspersed between small lymphocytes the lymphoblast with a high nucleus-cytoplasm ratio is a larger cell with a distinct nucleolus. The cytoplasm is studded with numerous polysomes and ribosomes, only few mitochondria and a single strand of rough endoplasmic reticulum are pre... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 80 |
 |
Lymphocyte | Scheme electron microscopy. A lymphocyte with an indented nucleus and (1) nucleolus shows a juxta-nuclear Golgi area (2) and centriole (3), several mitochondria (4) and sparsely profiles of rough endoplasmic reticulum (5) in the cytoplasm. Few dense-stained granules (6) are present. The granules con... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 81 |
 |
Lymphocyte (mature) | Scheme electron microscopy. Mature B and T lymphocytes are ameboid cells (5-8 m) with a high nucleus-cytoplasmic ratio. The cytoplasm contains a juxta-nuclear Golgi area (1) with centrioles (2), few large mitochondria (3) and sparsely profiles of rough endoplasmic reticulum (4) are present. The surf... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 82 |
 |
Lymphocyte (mature) (peripheral blood, human) | Electron microscopy. Mature B and T lymphocytes are ameboid cells (5-8 m) with a high nucleus-cytoplasmic ratio. The cytoplasm contains a juxta-nuclear Golgi area with centrioles (6), few large mitochondria (4). Profiles of rough endoplasmic reticulum (RER) (5) are sparsely present. The surface exhi... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 83 |
 |
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 | |
| 84 |
 |
Mast cell | Mast cells (mastocytes) are oval (12 m) or spindle-shaped and are frequently found perivascularly or perineurally. The cytoplasm is provided with a moderate amount of organelles and small thin or blunt microvilli at the surface. Most obvious is the presence of large granules varying in shape and siz... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 85 |
 |
Mast cell (connective tissue, human) | Electron microscopy. Mast cells (mastocytes) are frequently found perivascularly or perineurally within the connective tissue. A detail of this mast cell shows granules varying in shape and size. These membrane-bound vesicles (so-called compound granules) show a metachromatic reaction in light micro... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 86 |
 |
Mast cell (lung, dog) | Electron microscopy. This mucosal mast cell of the lung is localized in the vicinity of a blood vessel. Notice the smooth muscle cells (1) of a small arteriole and collagen fibers (2). Most obvious is the presence of granules varying in shape and size. These membrane-bound vesicles (so-called compou... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 87 |
 |
Mast cell (lung, golden hamster) | Electron microscopy. Mucosa mast cells (mastocytes) are frequently found perivascularly or perineurally. The mast cell shows long thin microvilli at the surface and the cytoplasm is stuffed with granules (1) varying in shape and size. At (2) a Golgi area and at (3) small mitochondria and some electr... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 88 |
 |
Mast cell (lung, human) | Electron microscopy. Mast cells (mastocytes) are oval (12 m) or spindle-shaped and show few thin microvilli at the surface. They are frequently found perivascularly or perineurally within the connective tissue (1). The cytoplasm is provided with a moderate amount of organelles. Most obvious is the p... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 89 |
 |
Mast cell (lung, human) | Electron microscopy. Mast cells (mastocytes) are frequently found perivascularly or perineurally. A part of this mast cell shows thin microvilli at the surface and the cytoplasm is provided with a moderate amount of organelles. At (*) the Golgi area (1) is seen in close association with granules tha... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 90 |
 |
Mast cell in bone marrow smear (human) | Stain: May-Grnwald-Giemsa (MGG). The mast cell (1) is characterized by the presence of coarse purple-black granules and a nucleus with oval, central nucleus. The granules contain pharmacologically active mediators such as heparin, histamine, neutrophil- and eosinophil-chemotactic factors, vasoactive... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 91 |
 |
Mast cells in peripheral blood smear (human) | Stain: May-Grnwald-Giemsa (MGG). Mast cells (1) from two different smears. (2) Monocyte. Mast cells or tissue basophils are normally present in small numbers in bone marrow smears. They must not be confused with developing basophils. Mast cells are large cells (20-30 m in diameter) with an irregular... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 92 |
 |
Maturation stages of plasmablasts (spleen, liver rat) | Electron microscopy. The youngest (plasmacytoid) lymphocyte in (A) shows a slight indented nucleus with a distinct nucleolus. Apart from a few mitochondria the cytoplasm contains large amount of free ribosomes and polysomes, few profiles of long rough endoplasmic reticulum (1, RER) and Golgi areas (... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 93 |
 |
Mature erythrocytes (spleen, gerbil) | Scanning electron microscopy. Normal mature erythrocytes (1) are mostly biconcave and discoid. They might change their forms due to mechanical pressures. (2) a mature lymphocyte recognizable by many short stubby microvilli at the surface. (3) granulocytes are larger with fewer but longer microvilli.... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 94 |
 |
Megakaryoblast in bone marrow smear (human) | Stain: May-Grnwald-Giemsa (MGG). The megakaryoblast (1) is not yet producing platelets and has a relative small amount of basophilic cytoplasm. The nucleus is large with fine disperse chromatin and nucleoli. Most other nucleated cells are of the myeloid cell line. | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 95 |
 |
Megakaryocyte | Scheme electron microscopy. The megakaryocyte is derived from a pro-megakaryocyte which originates from splenic stem cells (CFU-S, colony forming units-spleen). The megakaryocyte is a giant polyploid cell (35-160 m) and contains a large multilobate nucleus (1). The perinuclear area shows Golgi areas... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 96 |
 |
Megakaryocyte (bone marrow, mouse) | Electron microscopy. A detail of the cytoplasm of a megakaryocyte (see inset) demonstrates distinctly a part of the intermediate zone subdivided by an interconnected tubular system (so-called demarcation membrane system or open canalicular system: OCS) that is in continuity with the cell surface. Th... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 97 |
 |
Megakaryocyte (bone marrow, rabbit) | Electron microscopy. A survey of a megakaryocyte demonstrates very well the differences in diameter between this giant polyploid cell (1) and the other young white blood cells (2-5). In the intermediate zone the (dark) granules (of the future platelets) are close associated with the electron-light i... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 98 |
 |
Megakaryocyte (peripheral blood, human) | Electron microscopy. A small part of a megakaryocyte (see also inset) shows two nuclear segments (1) and two areas of cytoplasm. Seen at this magnification and close to the perinuclear area, the granular population can be divided into homogeneous electron-dense (2) and electron-grey (3) granules. Th... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 99 |
 |
Megakaryocyte in bone marrow smear (human) | Stain: May-Grnwald-Giemsa (MGG), (black and white print). The giant polyploid cell (35-160 μm) contains a large multilobate nucleus. Note the ring-like pattern of the nuclei (1). The light-stained perinuclear zone (2) contains Golgi areas, within the encompassing greyish (intermediate) zone (3) gra... | Poja Histology Collection - Blood & Bone Marrow Subset | |
| 100 |
 |
Mitosis in bone marrow smear (human) | Stain: May-Grnwald-Giemsa (MGG). Increased mitotic activity can be observed in megaloblastic anemia. (1) Mitosis figure. (2) Basophilic erythroblasts. | Poja Histology Collection - Blood & Bone Marrow Subset |