University:
Texas A&M University
Course:
BIOL 213 | Molecular Cell Biology
Academic year:

2024
Views:

311

Pages:

26
Author:

Quintin Ware

Cell Structure I 148 Ileum 148 Ileum 148 Ileum PAS 249 Ileum, monkey (PAS) 249 Ileum, monkey (PAS) 153 Goblet cells of large intestine of Colon, monkey 153 Plasma cells large intestine in Colon, monkey 153 Large intestine or Colon, monkey 447 Duodenum, monkey (toluidine blue) 447 Duodenum, monkey (toluidine blue) 447 Duodenum, monkey (toluidine blue) 447 Duodenum, monkey (toluidine blue) 32409 rat intestine 32409 rat intestine Clusters of mitochondria in apical cytoplasm 32409 Rat intestine nuclei EM 3: Basal portion of intestinal absorptive cells with basement membrane region at the bottom of the image. 1. Nucleus of intestinal absorptive cell 2. Basal lamina 3. Mitochondria EM 3: (enlargement of section from class print): The basement membrane region contains collagen fibrils and a fuzzy basal lamina that is adjacent to the plasma membrane at the basal end of the intestinal absorptive cells. • Basal lamina • Collagen • Interdigitation of plasma membrane EM 4: Apical end of intestinal absorptive cell with prominent brush border visible. The microvilli of the brush border are coated with a glycocalyx which appears as a fuzzy layer on the lumenal aspect of the brush border. A goblet cell occupies part of the image. 1. Microvilli 2. Glycocalyx 3. Goblet cell EM 4b: Intestinal absorptive cell (apex); 60,000x. 1. Microfilaments 2. Microvilli 3. Mitochondria 4. Plasma membranes of adjacent cells 5. Terminal web 6. Zonula occludens EM 4c: Intestinal absorptive cell (super nuclear region); 60,000x. 1. Budding RER 2. Coated vesicle 3. Golgi 4. Mitochondria 5. Nucleus 6. Plasma membrane 7. Primary lysosome