Section 2

In This Section:

Organelles

Glycogen
Lipid
Lysosomes
Microvilli
Mitochondria
Nucleus 1
Nucleus 2

Junctions
Desmosomes
Tight Junction
Primitive Junction

Tonofilaments

Comments and Questions

Cytoplasmic Organelles

Tonofilament Bundles

Electron dense tonofilament bundles (T) are present in the cytoplasm of this cell. These intermediate type junctions are present in normal epithelial cells and neoplastic cells that exhibit epithelial differentiation. Tonofilament bundles are often more prominent in neoplastic cells that exhibit squamous differentiation..

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