Which muscles having functionally multinucleated conditions ?

Options

A. Cardiac musle
B. Smooth muscles
C. Voluntary muscle
D. All of these

Answer

**Step-by-Step Solution:**

1. **Understanding Muscle Types**:
- Muscles in the human body can be classified into three main types: cardiac, smooth, and skeletal muscles.
- Cardiac and smooth muscles are involuntary, meaning they operate without conscious control, while skeletal muscles are voluntary, meaning they can be controlled consciously.

2. **Analyzing Cardiac Muscle**:
- Cardiac muscle is found in the heart and is composed of cells called cardiomyocytes.
- Each cardiomyocyte typically contains one nucleus. Therefore, cardiac muscle does not have a multinucleated condition.

3. **Analyzing Smooth Muscle**:
- Smooth muscle is found in various organs such as the stomach and esophagus.
- Similar to cardiac muscle, smooth muscle cells also contain only one nucleus. Hence, smooth muscle is also not multinucleated.

4. **Analyzing Skeletal Muscle**:
- Skeletal muscle is the type of muscle that is under voluntary control and is responsible for body movements.
- Skeletal muscles are made up of myofibrils, which are composed of repeated units called sarcomeres.
- The formation of skeletal muscle occurs through a process called myogenesis, where several uninucleated precursor cells (myoblasts) fuse together to form a single muscle fiber that contains multiple nuclei.

5. **Conclusion**:
- Since skeletal muscle is formed from the fusion of multiple uninucleated cells, it is functionally multinucleated. Therefore, the correct answer to the question is skeletal muscle.

**Final Answer**: Skeletal muscle is the muscle that has a functionally multinucleated condition.

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