Red and White Muscles are the skeletal Muscles in our body and they perform some critical functions in the body. Skeletal Muscles, both Red and White, serve a variety of roles in the body. Red Muscles get their name from the fact that they have a lot of capillaries and are high levels of myoglobin and mitochondria, giving them a distinct Red color. White Muscles, on the other hand, have less mitochondria and myoglobin, giving them a “whitish” look. Continue reading to learn more about the Red and White Muscle. At , we have created a summary of the difference between Red and White Muscle for an easy understanding of the students. Let’s first understand what these Muscles are.
There are almost 600 Muscles in a human body and these are classified into three categories; skeletal Muscles, cardiac Muscles, and smooth Muscles. The musculoskeletal system of the body has two basic components: the Muscles (musculo) and the skeletal structure upon which these Muscles are attached. These skeletal Muscles can be categorized into Red Muscles and White Muscles.
Red Muscles
Red Muscles are Red because of the presence of dense capillaries that are rich in myoglobin and mitochondria. One of the main difference between Red and White Muscle Fibers is the colour which is deep Red for Red Muscles because of myoglobin which is present in the sarcoplasm (cytoplasm) of the Muscle Fiber. The myoglobin present in Red Muscles binds oxygen and stores it as oxymyoglobin in the Red Fibers. During Muscle contraction, oxymyoglobin releases the oxygen requiRed. A good example of Red Muscles is the extensor Muscle.
White Muscles
White Muscles have a lesser amount of myoglobin and mitochondria and hence appear whitish. An example of White Muscle is the eyeball Muscle. White Muscle is a kind of muscular tissue seen in fish that is made up of fast-twitch Muscle Fibers that are designed to contract quickly. Fast swimming movements and escape reflexes require White Muscles. They are grouped in a helical form rather than parallel to the body axis and lay deeper in the body than the Red Muscles utilized for sluggish swimming. When they compress, this configuration causes significant body curvature.
Let’s look at the Red and White Muscle difference in detail below
|
Criteria |
Red Muscles |
White Muscles |
|
Presence of Mitochondria |
They are more in number in the body |
Lesser in number than they are in Red Muscle |
|
Appearance |
Red Muscles are thinner |
White Muscles are thicker than Red Muscles |
|
Capillary bed |
Capillary bed is denser |
It is less dense |
|
Contraction rate |
The contraction rate of Red Muscles is slower than in White Muscle |
The contraction rate is faster than that of Red Muscles |
|
Sarcoplasmic Reticulum (SR) |
They have a lesser amount of SR than White Muscle |
They have more SR than Red Muscle |
|
Fatigue rate |
Red Muscles can perform aerobic oxidation without collecting a lot of lactic acids. This helps the Red Muscles to contract for a long period |
White Muscles perform anaerobic oxidation and in the process, they accumulate more lactic acid than the Red Muscles. This leads to fatigue in the Muscles after a short period of contraction. |
|
Oxygen utilization |
Red Muscles use more oxygen than White Muscles and this is one of the reasons why they are used in strenuous activities like exercise. |
White Muscles use a lesser amount of oxygen than the Red Muscles |
|
Energy generation |
They rely only on oxygen to generate energy and are thus also called slow-oxidative Muscles. |
They are rich in glycogen and enzymes of glycolysis which gives them the requiRed energy. |
|
Twitch-Fibers |
They have slow-twitch Fibers that contract slowly for a long time without fatigue |
They have fast-twitch Fibers that contract faster for a short period and get tiRed soon. |
|
Example |
Extensor Muscles of the human |
Eyeball Muscle |
Tips To Learn Biology
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Make your summarized notes when your teacher is teaching in class. It is very important to take notes as it facilitates last minute revisions.
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Write down significant phrases, concepts, or facts in point form. If you know what acronyms and symbols signify, use them. Make sure to leave room for future explanations.
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Make sure you check through your notes to make sure you understand them, ideally on the day you made them.
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Make the notes simple to read by tidying them up. Fill in any gaps in the information and clear up any ambiguities. You may accomplish this with the aid of reference materials such as textbooks and reputable websites. It’s also a good idea to get clarification from your teacher.
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Keep all of your notes in a different notebook or binder. Once your notes are accurate, go over them again and again to help you remember what you’ve written.
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Keep all of your notes in a different notebook. Once your notes are accurate, go through them everyday to assist you recall what you’ve written.
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Make concise summaries of key portions of the book. If it is possible, consider underlining the most significant aspects in the textbook.
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In Biology, illustrations are crucial. Pay close attention to the drawings, diagrams, charts, tables, graphs, pictures, and captions.< /span>
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Make regular use of your textbook. Even if the reading hasn’t been assigned, read the portion that corresponds to your current classroom topic for reinforcement and clarification.
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As you read, try to connect the pictures to the text. The images may assist you in better understanding the text and in recalling data. If you have a really relevant visual, include it in your summary notes.
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