National Certification Board for Therapeutic Massage & Bodywork (NCBTMB) Practice Exam

The pubis is the bone that makes up the anterior part of the coxal bone, which is one of the three major bones forming the pelvis. The coxal bone is also known as the hip bone and is composed of the ilium, ischium, and pubis. The pubis is located at the lower front of the pelvis, and it plays a crucial role in forming the pubic symphysis, a joint that connects the left and right pubic bones. This connection is important for weight-bearing and movement, particularly during activities like walking and running.

In contrast, the ilium forms the superior and lateral aspect of the coxal bone, whereas the ischium constitutes the inferior and posterior portion, providing support when sitting. The sacrum, while a critical component of the pelvis, is not part of the coxal bone itself; it is a separate bone that connects the pelvis to the spine. Hence, the role of the pubis as the anterior bone in this anatomical structure is essential for understanding pelvic anatomy and its function.