Cardiac muscles as compared to skeletal muscles can contract

Options

A. Quickly and do not get fatigued
B. slowly and do not get fatigued
C. Quickly and get fatigued
D. Slowly and get fatigued

Answer

**Step-by-Step Solution:**

1. **Understanding Muscle Types**:
- There are three types of muscle tissues in the human body: skeletal, cardiac, and smooth muscles.
- Cardiac muscles are found in the heart, while skeletal muscles are attached to bones and enable voluntary movements.

2. **Characteristics of Cardiac Muscles**:
- Cardiac muscles are involuntary, meaning they are not under conscious control.
- They are responsible for the rhythmic contractions of the heart.

3. **Characteristics of Skeletal Muscles**:
- Skeletal muscles are voluntary and are controlled consciously.
- They are responsible for movements of the body parts like arms and legs.

4. **Contraction Speed**:
- Cardiac muscles contract quickly to pump blood efficiently throughout the body.
- Skeletal muscles can also contract quickly, but they tend to fatigue faster than cardiac muscles.

5. **Fatigue Resistance**:
- Cardiac muscles do not get fatigued easily due to their unique structure and energy supply mechanisms.
- In contrast, skeletal muscles can get fatigued after prolonged use.

6. **Conclusion**:
- Based on the characteristics of both muscle types, the correct comparison is that cardiac muscles can contract quickly and do not get fatigued easily.

**Final Answer**: Cardiac muscles, as compared to skeletal muscles, can contract quickly and do not get fatigued.

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