(a)Skeletal muscles
- Attached on the skeleton.
- Have strips running across them thus called striped or striated muscles.
- Are multinucleated;
- The covering of muscle fibre is called sarcolemma;
- The functional unit of the muscle is the myofibrils;
- The muscle innervated by the voluntary part of the nervous system.
(b) Smooth muscle
- Found on the walls of tubular visceral organs.
- Cells are spindle shaped with a single nucleus.
- Lack of striations.
- Innervated by the autonomous part of nervous system (are involuntary)
(c) Cardiac muscle
- Each muscle fibre consist of short cells with centrally placed nuclei and numerous striated fibrils.
- Ends of cells marked by intercalated discs.
- Are myogenic and independent of nervous stimulations.
- Capable of continuous contraction without fatigue;
sharon kalunda answered the question on May 29, 2019 at 06:56
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