Electron micrographs – DDS

List of structures required for identification in electron micrographs during the practical exam:

The electron micrographs presented during the lab exam will be slightly different from those shown at the labs. All the micrographs listed below can be found in the textbook.

  1. Cell – structural components of cell nucleus, nuclear pores, all organelles
  2. Epithelial tissue: brush border, cilia, basal lamina, intercellular junctions
  3. Connective tissue: collagen fibrils, plasma cell, macrophage, mast cell
  4. Bone: osteocyte, osteoclast, ruffled border
  5. Blood: neutrophil, eosinophil, lymphocyte, monocyte
  6. Muscular tissue: components of the sarcomere (bands and lines), T-tubule, muscular triad, intercalated disc in cardiac muscle
  7. Nervous tissue: unmyelinated and myelinated nerve fibres in cross-section, synapse
  8. Circulatory system: capillary vessel (continuous or fenestrated) in cross-section
  9. Respiratory system: air-blood barrier, pneumocyte type II
  10. Urinary system: filtration barrier, proximal & distal tubule cell
  11. Digestive system: taste bud, parietal cell, intestinal absorptive cell, goblet cell, sinusoidal and canalicular domains of hepatocyte, pancreatic exocrine cell
  1. Endocrine system: steroid-producing cell, B-cell of the pancreatic islet, DNES (enteroendocrine) cell in epithelium
  1. Male reproductive system: Leydig cell with Reinke crystal, spermatozoon tail in cross-sections
  2. Female reproductive system: primary ovarian follicle with oocyte, zona pellucida and follicular cells