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Central Nuclei
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Cytoplasm to nuclear area ratio low
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Relatively few cells sectioned through nucleus
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Figure 12 - Smooth muscle in longitudinal section. Bar is 50 microns |
Smooth muscle in longitudinal section is identified by long, thin central nuclei, a more scattered tissue layout, and an absence of striations.
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Figure 13 - Smooth muscle in transverse section. Bar is 250 microns |
Smooth muscle in transverse section can be identified by central nuclei and a small ring of surrounding cytoplasm. It may be evident that relatively few cells have been sectioned through the nucleus. Compare this to cardiac muscle in TS.
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Figure 14 - Skeletal & smooth muscle in transverse section. Bar is 100 microns |
A closer look clearly shows skeletal muscle to the right and smooth muscle to the left.
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