Which of the following statement is incorrect about coronary artery disease in man ?

Options

A. CAD is often referred to as arthrosclerosis , which affects the vessels that supply blood to the heart muscle.
B. It is caused by deposits lipid - cholesterol , calcium and fibrous tissue in the wall of major arteries.
C. It makes the lumen of carotid arteries narrower.
D. All of the above are correct

Answer

To determine which statement is incorrect about coronary artery disease (CAD) in men, we will analyze each statement provided in the question.

### Step-by-Step Solution:

1. **Understanding Coronary Artery Disease (CAD)**:
- CAD is a condition that affects the coronary arteries, which supply blood to the heart muscle. It is often associated with atherosclerosis, a process where arteries become narrowed due to the buildup of plaque.

2. **Analyzing the Statements**:
- We will examine each statement related to CAD to identify any inaccuracies.

3. **Statement 1**: "CAD is often referred to as atherosclerosis which affects vessels that supply blood to the heart muscles."
- This statement is **correct**. CAD is indeed often associated with atherosclerosis, which affects the coronary arteries.

4. **Statement 2**: "The lumen of arteries narrows due to the deposition of calcium, fat, and cholesterol."
- This statement is also **correct**. The narrowing of the lumen in arteries is caused by the accumulation of fatty deposits, cholesterol, and calcium.

5. **Statement 3**: "This disease is related to the circulatory system."
- This statement is **correct**. CAD is a cardiovascular disease and is directly related to the circulatory system.

6. **Statement 4**: "All of the above statements are correct."
- Since all previous statements have been confirmed as correct, this statement is also **correct**.

7. **Conclusion**:
- Since all the statements provided about coronary artery disease are correct, the question asks for the incorrect statement. Therefore, the answer is that there is no incorrect statement among the options provided.

### Final Answer:
- The correct option is: **All of the above are correct.**