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Detail of a single human rib
Single human rib-detail
Ribcage from Gray's Anatomy

A rib is a bone that forms a structure around the thorax of vertebrates. This is known as the rib cage. Humans have 24 ribs, 12 one each side.

It is a common urban legend that male humans have one fewer pair of ribs than female humans. However, this is not true. This came from the Christian bible explaining the creation of Eve from the rib of Adam.

Other websites[change | change source]

The dictionary definition of rib at Wiktionary