Located in the heart, cardiac muscles are excitable, contract at a moderate rate, require energy, and are responsible for involuntary muscle movement.
The Human Body is Comprised of Two Types of Muscles
Smooth Muscles
The cell walls of the internal organs are found to be smooth and lubricated, which is the speed of contraction, the energy requirement is low, and able to make muscle movements in a way that would not want to.\
Skeletal Muscles
Skeletal muscles attach to bones throughout the body, are independent of stimulation, have a high rate of contraction, require strength, and are responsible for voluntary muscle movements.
- The main differences between cardiac and skeletal muscle are discussed below.
Difference Between Cardiac Muscle And Skeletal Muscle
| Cardiac Muscle | Skeletal Muscle |
| Found | |
| In heart only | Attached to bones of the entire body |
| Length | |
| Shorter | Longer |
| Controlled by | |
| Autonomic nervous system | Somatic nervous system |
| Shape | |
| Semi-spindle | Cylindrical |
| Function | |
| Pumping blood | Movement of the body |
| Gap junctions | |
| Present | Absent |
| Cell type | |
| Uninucleated | Multinucleated |
| Endomysium | |
| Dense | Less Dense |
| Speed of contraction | |
| Less | Fast |
| Contracts | |
| Without neural stimulation | With neural stimulation |
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