Select the correct statement regarding the specific disorder of musclular or skeletal system.

Options

A. Osteoporosis - decrease in bone mass and higher chances of fractures with advancing age
B. Myasthenia gravis - Auto immune disorder which inhibits sliding of myosin filaments
C. Gout - inflammation of joints due to extra deposition of calcium
D. Muscular dystrophy - age related shortening of muscles

Answer

To solve the question regarding the specific disorder of the muscular or skeletal system, we will analyze each option provided and determine which statement is correct.

### Step-by-Step Solution:

1. **Analyze Option A: Osteoporosis**
- Osteoporosis is characterized by a decrease in bone mass and an increased risk of fractures, especially with advancing age. It is primarily due to a deficiency in calcium, vitamin D, or hormonal changes. This statement is correct.

2. **Analyze Option B: Myasthenia Gravis**
- Myasthenia Gravis is an autoimmune disorder that affects the neuromuscular junction, leading to muscle fatigue and weakness. However, the statement claims it inhibits the sliding of myosin filaments, which is incorrect. Therefore, this option is incorrect.

3. **Analyze Option C: Gout**
- Gout is a form of arthritis caused by the accumulation of uric acid in the joints, not calcium. The statement incorrectly refers to calcium deposition. Thus, this option is also incorrect.

4. **Analyze Option D: Muscular Dystrophy**
- Muscular Dystrophy is a genetic disorder characterized by the weakening and loss of muscle mass, not age-related shortening of muscles. This statement is incorrect.

5. **Conclusion:**
- After analyzing all options, we find that only Option A is correct. Osteoporosis is indeed associated with a decrease in bone mass and a higher risk of fractures with advancing age.

### Final Answer:
The correct statement regarding the specific disorder of the muscular or skeletal system is:
**Option A: Osteoporosis, decrease in bone mass and higher chances of fractures with advancing age.**

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