Final answer:
The regional term for the hip region is coxal, which is part of the hip bone.
Step-by-step explanation:
Regional Term for the Hip Region
The regional term for the hip region is coxal.
The hip bone, also known as the coxal bone, forms the pelvic girdle and consists of three regions: the ilium, ischium, and pubis. The ilium is the superior portion of the hip bone, and the iliac crest is the curved, superior margin. The hip region is located inferior to the gluteal region.
Therefore, the correct answer is a. Coxal.