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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
Renin granules in Kidney (PAS)
258
Ileum, monkey (PAS)
249
Trachea, monkey 133
Esophagus and trachea, monkey –
glands in trachea
242
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
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 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
Triad with bile duct Liver & spleen with
colloidal carbon, rat
118
EM 2: portion of two cells including
gap junction
1. Desmosome
2. Gap junction
3. Rough endoplasmic reticulum
absorptive cells of Ileum, monkey
250
Ileum, monkey (PAS)
249
argentaffin cells of Ileum, monkey
250
Large intestine or Colon, monkey 153
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
Skeletal muscle in spermatic cord
UT 196
196
UT196 valves in large vein of
spermatic cord
34456
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
Skin abdomen 206
Skin, scalp 209
Skin hand monkey 109
Skin hand monkey 109
Skin, foot 408
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
Urinary bladder, monkey
160
Ureter – transitional epithelium
and smooth muscle
262
Penis – transitional epithelium and
surrounding spongy cavernous of penal urethra
277
Penis - transitional epithelium of penal urethra 277