part of part of branching part of branching part of vessel supplies blood to system artery respiratory system artery pharyngeal arch artery pharyngeal arch derived gill afferent portion of pharyngeal arch artery Artery that is part of the pharyngeal arches 3-5, and forms the afferent portion of a loop off of the aortic arch[ZFA]. afferent portion of branchial artery afferent branchial artery ZFA:0000716 TAO:0000716 UBERON:2000716 A section of a pharyngeal arch artery that delivers blood to the gills.