Compared with the pectoral girdle, the pelvic girdle is
A) not as firmly anchored to the axial skeleton.
B) comprised of more massive bones, which are adapted for weight bearing.
C) composed of more separate bones.
D) more flexible and freely movable.
E) structurally identical.

Question

Quizplus · Accepted Answer

The pelvic girdle is comprised of more massive bones, such as the ilium, ischium, and pubis, which are adapted for weight-bearing and supporting the weight of the torso and the organs in the pelvic cavity. In contrast, the pectoral girdle is not as massive and is mainly responsible for attaching the upper limb to the axial skeleton, allowing for greater flexibility and range of motion.

Compared with the Pectoral Girdle, the Pelvic Girdle Is