Difference between Red and White Muscle Fibre
Difference between Red Muscle fibre and White Muscle Fibres :
The red muscles are skeletal muscles rich in capillaries, in myoglobin and mitochondria . Capillaries are very small blood vessels that supply oxygenated blood to muscles. The main reason why these muscles are called red muscles is because they contain a lot of myoglobin, which gives a red color. Of course, the rich capillary environment (think: lots of red blood) adds to the color, and the mitochondria also help make these muscles darker in color.
Distinguish Between Red Muscle fibre and White Muscle Fibre
| Red Muscle Fibres | White Muscles Fibers |
|---|---|
| In red Muscle fibre more number of Mitochondria are present. | In white Muscles fibre mitochondria is present in less number as compared to red Muscle fibre. |
| In this sorcoplasmic reticulum is less in number. | In white Muscles sorcoplasmic reticulum is present in Large in number. |
| Red Muscles are thin and small in size as compared to the white muscle fibre. | White Muscles are thick and large in size than white Muscles. |
| Red in color because of presence of more amount of Myoglobin. | White in color because of less amount of Myoglobin is Present. |
| In red Muscle fibre the process of contraction is slow as compared to white Muscles. | In white Muscles rate of muscle contraction is fast. |
| Red Muscle fibre use more Oxygen. | It white Muscles fibre less amount of oxygen involved as compared to red Muscle fibre. |
| Red Muscle perform aerobic oxidation without accumulating more lactic acid. | White Muscles fibre perform anaerobic oxidation by accumulating more lactic acid. |
| They have slow twitch fiber that contracts muscle slowly. | They have fast twitch fiber which contracts muscle faster than red Muscle fibre. |
| Example of red Muscle is extensor Muscle. | Example of white Muscles is muscle of the eye. |
| Less amount of energy is produced. | More amount of energy is produced as compared to red Muscle because of presence of glycogen. |