Final answer:
The statement in question is true; the abdominal cavity is indeed continuous with the pelvic cavity inferiorly, forming the single continuous abdominopelvic cavity.
Step-by-step explanation:
The statement The abdominal cavity is continuous with the pelvic cavity inferiorly is true. The abdominopelvic cavity is a single continuous space that is artificially divided into two parts for descriptive purposes: the abdominal cavity and the pelvic cavity. The abdominal cavity extends from the diaphragm down to the superior margin of the pelvis, which is defined by the pelvic brim. The pelvic cavity then continues from this point downward.
The broad, superior region of the pelvic cavity is known as the greater pelvis or false pelvis, which is related closely to the abdominal cavity and houses parts of the intestines. Inferior to this is the lesser pelvis or true pelvis, housing organs like the bladder. While no physical barrier exists between the two cavities, the anatomical demarcation, the pelvic brim, serves as a reference point but does not disrupt the contiguous nature of the abdominopelvic cavity.