They are 53 trunk bones in human body, as follows.Vertebrce (24)—7 cervical, 12 dorsal, and 5 lumbar vertebrae.
Thorax (25)—7 pairs of true ribs, 3 pairs of false ribs, 2 pairs of floating ribs,and the sternum, articulating vi^ith the bodies of the dorsal vertebrae.
Pelvis (4)—the sacrum, the coccyx, and 2 ossa innominata; each os innominatum consisting of 3,—the ilium, ischium, and pubes.
