Similarities And Differences Between The Cardiac And Skeletal Muscle

836 Words Jan 13th, 2015 4 Pages
This table shows the similarities and differences between the cardiac and skeletal muscle. One of the main similarities is the fact both muscles are categorized as striated muscles. Striations are the main key to identifying the skeletal and cardiac muscle. The striated muscles are attached to the bone of the cells in which they produce all the movement in the body. Another similarity is that they can be electrically conducted because they both contain t-tubules. The t-tubules are the plasma membrane of both muscles. They allow depolarization of the membranes which then penetrate into the cell.
They are both resistant to fatigue, especially the cardiac muscle due to the large amount of mitochondria is contains. However the skeletal muscle contains a significant amount more of mitochondria (taking up 25% of its space) compared to the cardiac muscle in which it only occupies 2% of its space. This is because the main functions of the skeletal muscle is to produce movement, maintain posture and stabilises joints therefore they need to produce a lot of energy to do so. They also have continuous aerobic metabolism due to the fact they both have a good supply of oxygen. The cardiac muscle is responsible for pumping the blood around the heart and the skeletal muscle is responsible for allowing movement of the body therefore they are both essential to be able to live. Because this is there functions, they need a high demand of blood to share around the body, in which they receive by…
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