单词 | arterial arch |
释义 | arterial archarterial archblood vessels which link the lateral dorsal AORTA with the ventral aorta. Six arches are present in vertebrate embryos and numbers 4–6 remain to serve the gills in fish. In higher vertebrates, numbers 3,4 and 6 remain as the carotid, systemic and pulmonary arches. |
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