The two hip bones, the sacrum, and the coccyx form the ______.Multiple choice question.ossa coxaepelvispelvic girdle

The correct answer to this question is pelvic girdle.

Explanation

The pelvic girdle, also known as the pelvis, is a bony structure that connects the trunk of the body to the lower limbs. It is composed of two hip bones (also known as the ossa coxae), the sacrum, and the coccyx.

1. Hip Bones (Ossa Coxae): Each hip bone is formed by the fusion of three bones: the ilium, ischium, and pubis. These bones are vital for supporting the weight of the upper body when sitting and standing and also play an essential role in the movement of the legs.

2. Sacrum: This is a large, triangular bone at the base of the spine, formed by the fusion of five vertebrae. It connects the hip bones to the spine.

3. Coccyx: Also known as the tailbone, the coccyx is a small bone at the very bottom of the vertebral column and is formed by the fusion of four small vertebrae.

The pelvic girdle supports the internal organs in the pelvic region and provides attachment for various muscles, contributing to our ability to walk, run, and maintain balance. Therefore, it is accurate to say that the two hip bones, sacrum, and coccyx collectively form the pelvic girdle.