Anatomy All are true regarding aoic arch derivatives except: A Pulmonary aery develops from 6th arch B Maxillary aery derives from 1st arch C All 6 arches are not present simultaneously D 5th arch is absent in 5% of embryos 💡 Explanation All are true regarding aoic arch derivatives except: ✓ Correct Answer: D. 5th arch is absent in 5% of embryos