Differences among skeletal, cardiac, and smooth muscle

• Skeletal muscle:

1. Striated
2. Unbranched
3. Z line
4. Multinuclei, peripheral
5. T tubules forms triad at A-I junction
6. No gap junctions

• Cardiac muscle:

1. Striated
2. Branched
3. Z line
4. One nucleus, center
5. T tubules forms dyad at Z line
6. Intercalated discs, gap junctions

• Smooth muscle:

1. No striated
2. No Z line
3. Dense bodies
4. One nucleus
5. No T tubules
6. Gap junctions