Muscles immune to fatigue area) Cardiac b) Eye muscles c) Unstriated d) Skeletal Correct answer is option 'A'. Can you explain this answer?

Question

Muscles immune to fatigue area)                                  Cardiac                               b)                                  Eye muscles                               c)                                  Unstriated                               d)                                  Skeletal                               Correct answer is option 'A'. Can you explain this answer?

Answer

Cardiac muscle resists fatigue so well because it's got more mitochondria than skeletal muscle. With so many power plants at its disposal, the heart doesn't need to stop and chill out. It also has a steady supply of blood bringing it oxygen and nutrients.

Answer

Cardiac muscle resists fatigue so well because it's got more mitochondria than skeletal muscle. With so many power plants at its disposal, the heart doesn't need to stop and chill out. It also has a steady supply of blood bringing it oxygen and nutrients.

Answer

Cardiac muscles are present in heart .

Answer

Cardiac muscles are muscles of heart Which have lots of Mitochondria (i don't remember the exact no.) Thats why it is immune ti fatigue.

Answer

Cardiac Muscles are Immune to Fatigue

Introduction

Cardiac muscles are a type of muscle tissue found in the walls of the heart. They are responsible for the contraction and relaxation of the heart, allowing it to pump blood throughout the body. Unlike other types of muscle tissue, cardiac muscles are immune to fatigue.

Explanation

Cardiac muscles are designed to work continuously without tiring. This is due to several unique characteristics of these muscles:

1. High Mitochondrial Density: Cardiac muscles have a high number of mitochondria, which are the powerhouses of the cell. Mitochondria produce the energy (in the form of ATP) needed for muscle contraction. The high mitochondrial density in cardiac muscles ensures a constant supply of ATP, allowing the muscles to sustain their contractions for long periods of time.

2. Rich Blood Supply: The heart is supplied with a rich network of blood vessels, including coronary arteries. These arteries deliver oxygen and nutrients to the cardiac muscles, ensuring their continuous functioning. The constant supply of oxygen helps in the production of ATP and prevents the accumulation of metabolic waste products that can cause fatigue.

3. Aerobic Metabolism: Cardiac muscles primarily rely on aerobic metabolism, which is the breakdown of glucose and fatty acids in the presence of oxygen to produce ATP. This metabolic pathway is highly efficient and can generate a large amount of ATP, providing a sustained source of energy to the muscles.

4. Intercalated Discs: Cardiac muscles are interconnected by specialized junctions called intercalated discs. These discs allow for rapid and synchronized contraction of the heart muscle. They also facilitate the efficient transmission of electrical impulses between muscle cells, ensuring coordinated contractions and preventing muscle fatigue.

Conclusion

In conclusion, cardiac muscles are immune to fatigue due to their high mitochondrial density, rich blood supply, reliance on aerobic metabolism, and specialized intercalated discs. These unique characteristics allow the heart to continuously contract and pump blood without tiring, ensuring the vital function of circulating oxygen and nutrients throughout the body.

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