Final answer:
The lesser curvature of the stomach refers to the concave medial border of the organ. It is held in place by the lesser omentum and is one of the two main surfaces of the stomach. This concept is studied in high school biology.
Step-by-step explanation:
In biology, the lesser curvature refers to the concave medial border of the stomach. It is one of the two main surfaces of the stomach, with the other being the greater curvature which is convex. The stomach is held in place by the lesser omentum, which extends from the liver to the lesser curvature.