Most common organ involved in air blast injury is –
**Core Concept**
Air blast injury, also known as primary blast injury, occurs due to the rapid change in air pressure caused by an explosion. This pressure wave can cause damage to the body, particularly to hollow organs filled with gas.
**Why the Correct Answer is Right**
The most common organ involved in air blast injury is the lung. The rapid change in air pressure causes the air in the lungs to expand and contract rapidly, leading to damage to the alveoli and the surrounding lung tissue. This can result in symptoms such as pneumothorax, pneumomediastinum, and pulmonary hemorrhage.
**Why Each Wrong Option is Incorrect**
* **Option A:** The heart is a solid organ and is not typically affected by air blast injury.
* **Option B:** The liver is a solid organ and is not typically affected by air blast injury.
* **Option C:** The small intestine is a hollow organ, but it is not as sensitive to air blast injury as the lungs.
**Clinical Pearl / High-Yield Fact**
In air blast injury, the pressure wave can also cause damage to the ears, resulting in tympanic membrane rupture and hearing loss.
**Correct Answer:** C.