Final answer:
The region immediately left medial and superior to the hypogastric region is the umbilical region. This is based on the nine-region method used to subdivide the abdomen, with the umbilical region located above the hypogastric region.
Step-by-step explanation:
The abdominopelvic region that is immediately left medial and superior to the hypogastric region is known as the umbilical region. This can be understood by considering the nine-region subdivision of the abdomen, which includes the hypogastric (or pubic) region located inferior to the umbilical region.
The abdominopelvic cavity is further divided into a more detailed regional approach with nine distinct regions, as well as a simpler quadrants approach used for medical purposes. In the detailed approach, one horizontal line is drawn immediately inferior to the ribs and one immediately superior to the pelvis, while two vertical lines are drawn from the midpoint of each clavicle. The resulting nine regions include the umbilical region, which is situated right above the hypogastric region.
The arrangement of abdominal muscles, including the rectus abdominis, external oblique, internal oblique, and transversus abdominis, plays a pivotal role in protecting the internal organs and enabling movements of the trunk. These muscles are arranged in layers with different orientations, which allows for rotation and movement.