Biology NEET Full Syllabus Mock Test 180 Questions New Syllabus Mock Test - 15 PCB Single Correct MCQ
Published on: August 21, 2026

A man met with a severe accident and died instantly. Postmortem revealed no injuries to the heart, brain, stomach, or kidneys. However, a single critical physiological failure led to his death. Which of the following is the most plausible cause of instant death in this scenario?

A
Intestine got twisted
B
RBCs became coagulated
C
Stomach stopped digestion
D
Rupture or puncture of the diaphragm leading to respiratory failure

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Text Solution

Verified by Experts
The correct answer is:
D

• The diaphragm is the main muscle that allow lungs to expand and contract.

• If it's punctured, the person can't draw air into the lungs → immediate respiratory failure → death.

• If Intestine is twisted, it causes pain/obstruction, not instant death.

• If RBCs coagulate, it results in clotting, does not result in immediate death.

• If a stomach stops digestion, it is not life-threatening immediately.
So, a punctured diaphragm best explains instant death with heart/brain/stomach/kidney uninjured.

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