Book One -- The things that sustain and support the entire body, and what braces and attaches them all. [the bones and the ligaments that interconnect them] | Chapter 20 On the Cartilaginous Substance Which Is Ascribed to the Base of the Heart, Or the Bone of the Heart

The human heart has no bone 3

Galen stated that a bone of unusual size had been cut from the heart of an elephant by one of his friends, and he says that there is a bone in the hearts of great animals and a cartilage in the hearts of lesser ones. 4 But so far I have found a true bone in no heart, human 5 or otherwise, and in that place where Galen located the bone of the heart I observe a cartilaginous substance which in my view, at least, is nothing but the roots of the great artery (below B, C, and D [valva aortae] in fig. 10, Bk. 6) and the arterial vein (below E, F, G which mark the membranes [valva trunci pulmonalis] in fig. 8, Bk. 6) taking their origin from the heart.



Book One -- The things that sustain and support the entire body, and what braces and attaches them all. [the bones and the ligaments that interconnect them] | Chapter 20 On the Cartilaginous Substance Which Is Ascribed to the Base of the Heart, Or the Bone of the Heart