Which statement about stomach development is true?

Which statement about stomach development is true?

• A. The stomach rotates 90 degrees counterclockwise and ventral curvature moves to the right.
• B. The stomach rotates 90 degrees clockwise and the ventral (lesser) curvature moves to the right.
• C. The stomach rotates 180 degrees clockwise and the greater curvature moves to the left.
• D. The stomach does not rotate.

Answer: (B)

During stomach development, the organ rotates 90 degrees clockwise around its longitudinal axis as viewed from the front. This rotation places the left side anterior and the right side posterior. As a result, the ventral border shifts to the right, so the ventral (lesser) curvature ends up on the right. The greater curvature lies on the left. Later, the stomach settles in the upper left quadrant with this orientation of curvatures. So the statement describing a 90-degree clockwise rotation and the ventral (lesser) curvature moving to the right is true.

During stomach development, the organ rotates 90 degrees clockwise around its longitudinal axis as viewed from the front. This rotation places the left side anterior and the right side posterior. As a result, the ventral border shifts to the right, so the ventral (lesser) curvature ends up on the right. The greater curvature lies on the left. Later, the stomach settles in the upper left quadrant with this orientation of curvatures. So the statement describing a 90-degree clockwise rotation and the ventral (lesser) curvature moving to the right is true.