Question

Which of the following statements true regarding an atrial septal defect

• A. Combining with it to abolish free mobility and thus preventing it from acting in a damaging manner.
• B. Eliminating the toxins released by it.
• C. Phagocytosis
• D. Transporting it to the liver where it gets destroyed.

Answer 1

The correct option is D Transporting it to the liver where it gets destroyed.

Atrial septal defect is a congenital heart defect in the structure of the heart that is present at birth. A "hole" in the wall that separates the top two chambers of the heart. This defect allows oxygen-rich blood to leak into the oxygen-poor blood chambers in the heart. As a result, some oxygenated blood from the left atrium flows through the hole in the septum into the right atrium, where it mixes with oxygen-poor blood and increases the total amount of blood that flows toward the lungs. The increased blood flow to the lungs creates a swishing sound, known as a heart murmur.