Final answer:
A hernia is the abnormal protrusion of the small intestine through a weak point in the muscle of the abdominal wall.
Step-by-step explanation:
The abnormal protrusion of the small intestine through a weak point in the muscle of the abdominal wall is called hernia. A hernia occurs when there is a tear or weak spot in the muscles of the abdominal wall, allowing an organ or tissue to push through. In the case of a small intestine hernia, a portion of the small intestine protrudes through the abdominal wall.