14 - 6 lack T-tuble organization of the plasma membrane 7...

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Sheet1 Page 1 Smooth muscle structural characteristics (Table 8-3) 1) spindle shape, single nucleus, small size (20 x 400 µm), arranged in sheets 2) long thick myosin filaments 3) thin actin filaments that contain tropomyosin, but lack troponin 4) contain intermediate filaments for structural support 5) lack sarcomere organization, but contain dense bodies that act as anchors
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Unformatted text preview: 6) lack T-tuble organization of the plasma membrane 7) poorly developed sarcoplasmic reticulum 8) 10-15 thin filaments for each thick filament, oriented diagonally 9) contraction of the filament lattice causes cellular shortening and expansion...
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