Remnant of 1st arch aery ?: (A) Maxillary aery, (B) Mandibular aery, (C) Stapedial aery, (D) No remnants
Answer is A. 1st arch aery remnant is Maxillary Aery 2nd arch aery remnant is Stapedial Aery 3rd arch aery - Rt and Lt common Carotid Aeries and proximal pa of ICA. 4th arch aery - Rt. side - Proximal poion of Rt. Subclan Aery Lt. side - Arch of Aoa (pa between Left subclan and left common carotid aery) 5th arch aery has no remnant. 6th arch aery - Left - Left pulmonary aery and ductus aeriosus Right - Right pulmonary aery.