13.如圖所見頸部沿著箭頭所指示,可見一由前上向後下微突起之結構最可能是: (A)胸鎖乳突肌(sternocleidomastoid muscle) (B)橫頸動脈(transverse cervical artery) (C)外頸靜脈(external jugular vein) (D)內頸動脈(internal carotid artery)
靜脈在外層保護動脈
13.如圖所見頸部沿著箭頭所指示,可見一由前上向後下微突起之結構最可能是: (A..-阿摩線上測驗