University:
Texas A&M University
Course:
BIOL 319 | Integrated Human Anatomy and Physiology I
Academic year:

2024
Views:

247

Pages:

54
Author:

Arielle Armstrong

Epithelium and Junctions EM 3: region of basal lamina and connective tissue beneath intestinal epithelial absorptive cells 1. Plasma membrane 2. Basal lamina 3. Connective tissue EM 17; capillary in the lamina propria of the intestine (duodenum); 13,500x 1. Smooth muscle cell 2. Capillary 3. Endothelial cell 258 Renin granules in Kidney (PAS) 249 Ileum, monkey (PAS) 133 Trachea, monkey 242 Esophagus and trachea, monkey – glands in trachea 429 Larynx (Gallego's stain) 429 SPECIALIZATION OF EPITHELIA MAINTAIN EXTENSIVE CONTACTS AMONG CELLS STRUCTURALLY AND FUNCTIONALLY POLARIZED JUNCTIONS ZONULA OCCLUDENS - TIGHT JUNCTION (BELT) ZONULA ADHERENS – ADHERING BELT DESMOSOME (MACULA ADHERENS) - SPOT ATTACHMENT GAP JUNCTIONS - COMMUNICATION Terminal bars 32409 EM 6b: Region showing zonula occludens, zonula adherents, and macula adherents junctions between cells. 1. Zonula occludens 2. Zonula adherens 3. Desmosome EM 6b EM 6b EM 6c EM 4: Continuity between junctional complex and terminal web 1. Terminal web 2. Interdigitation of plasma membrane 3. Terminal bar EM 4a: Ridges and grooves of zonula occludens visualized by freeze cleave microscopy 1. Zonula occludens Inside the cell P = Protoplasmic side Outside the cell E = Ectoplasmic side EM 4a EM 2a: Particles and pits of gap junction visualized by freeze cleave microscopy 1. Gap junction EM 2a 118 Triad with bile duct Liver & spleen with colloidal carbon, rat EM 2: portion of two cells including gap junction 1. Desmosome 2. Gap junction 3. Rough endoplasmic reticulum 250 absorptive cells of Ileum, monkey 249 Ileum, monkey (PAS) 250 argentaffin cells of Ileum, monkey 153 Large intestine or Colon, monkey 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 Endothelial cells lining small blood vessel lumen with smooth muscle cells and fibrolasts in the vessel wall. 1. Lumen 2. Endothelial cell 3. Fibrolast EM 10a: Endothelial cells lining capillary with pericyte in the vessel wall. 1. Lumen 2. Endothelial cell 3. Tight junction 196 Skeletal muscle in spermatic cord UT 196 34456 UT196 valves in large vein of spermatic cord EM 10f: arteriolar wall; 30,000x 1. Apical caeolae 2. Collagen 3. Dense bodies 4. Elastic fiber 5. Endothelial cell 6. Nuclear pore 7. RER EM 8h: macrophage in testis; 30,000x. 1. Enlarged basal lamina 2. Heterophagic vacuole 3. Leydig cell cytoplasm 4. Nucleolus 5. Myoid cell 206 Skin abdomen 209 Skin, scalp 109 Skin hand monkey 109 Skin hand monkey 111 Skin 408 Skin, foot 178 Vagina 109 EM 8g: epidermis; 7,000x. Note desmosomal connections between cells 1. Keratinocyte 2. Desmosome 3. Melanocyte EM 16: surface mucosa of stomach; 13,500x 1. Granules of surface mucous cells 2. Mitochondria 3. Nuclei 4. Lumen 160 Urinary bladder, monkey 262 Ureter – transitional epithelium and smooth muscle 277 Penis – transitional epithelium and surrounding spongy cavernous of penal urethra 277Penis - transitional epithelium of penal urethra