A thin and weakened part of the wall of blood vessel that bulges out as a balloon like structure is called

Options

A. aneurysm
B. abscess
C. thrombus
D. haemotoma

Answer

To answer the question, "A thin and weakened part of the wall of a blood vessel that bulges out as a balloon-like structure is called," we can follow these steps:

### Step 1: Understand the Question
The question is asking for a specific medical term that describes a condition where a part of a blood vessel wall is weakened and bulges out.

### Step 2: Analyze the Options
The options provided are:
- A) Aneurysm
- B) Abscesses
- C) Thrombus
- D) Hematoma

### Step 3: Define Each Term
- **Aneurysm**: A localized, abnormal dilation of a blood vessel due to a weakness in the vessel wall.
- **Abscess**: A collection of pus that has built up within the tissue of the body, usually due to infection.
- **Thrombus**: A blood clot that forms in a blood vessel and remains there.
- **Hematoma**: A localized collection of blood outside of blood vessels, usually due to injury.

### Step 4: Identify the Correct Answer
From the definitions, an aneurysm is specifically characterized as a bulging or balloon-like structure in the wall of a blood vessel due to weakness. The other options do not describe a bulging structure in a blood vessel.

### Conclusion
The correct answer is **A) Aneurysm**.

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