start stage end stage branchial muscle ventral transverse ZFA:0000608 transverse ventralis TAO:0000608 Ventral branchial muscle that runs diagonally from near the horizontal midline at the caudal end caudal to the ventral side at the rostral end. The ventral transverse muscles are paired and there is a pair in each branchial arch. zebrafish_anatomy transversus ventralis unknown adult