Sacrum lumbar vertebra, and its lower part with the coccyx (tailbone) via the sacral and coccygeal cornua. The sacrum has three different surfaces which are shaped to accommodate surrounding pelvic structures. Overall it is concave (curved upon itself). The base of the sacrum, the broadest and uppermost part, is tilted forward as the sacral promontory internally. The central part is curved outward toward the posterior, allowing greater room for the pelvic cavity. In all other quadrupedal vertebrates, the pelvic vertebrae undergo a similar developmental process to form a sacrum in the adult, even while the bony tail (caudal) vertebrae remain unfused.
What's Bred in the Bone "The Lyre of Orpheus". It is also connected to earlier novels; when Cornish is at school in Toronto, one of his teachers is Dunstan Ramsay from the Deptford Trilogy. There are many parallels to be found in W. Somerset Maugham's Of Human Bondage. What's Bred in the Bone What's Bred in the Bone is the second novel in the Canadian writer Robertson Davies' Cornish Trilogy. It is the life story of Francis or Frank Cornish, whose death and will were the starting point for the first novel, "The Rebel Angels". After a brief framing scene among characters from "The Rebel