Rib FAQs:

Q: Are ribs mobile?

A: Yes, and a contraction of the diaphragm elevates the ribs, which works in conjunction with other muscles to expand the thoracic indent upward.

Q: Are ribs found only as tiny remnants fused to the vertebrae?

A: Yes, where they are referred to as transverse processes.

Q: Were ribs stout and short?

A: Yes, since they formed part of the pelvis, connecting the backbone to the hip bones.

Q: Are ribs present as distinct bones only on the thoracic region?

A: Yes, although small fused ribs are present on the cervical vertebrae.

Q: Are ribs never found in mammals?

A: Yes.

Q: Are ribs also present in monotremes?

A: Yes.