释义 |
> as lemmashaemal spine haemal arch, term used by Owen for the inferior arch of a typical vertebra. haemal cavity, the cavity formed by a series of hæmal arches (constituted by the ribs, costal cartilages, and breast-bone), and containing the heart, great blood vessels, and respiratory and digestive organs. haemal spine, the ventral element of a hæmal arch, represented by a segment of the breast-bone; also (quot. 1868) used by Darwin for a hypapophysis, or process on the hæmal side of the body of a vertebra.< |