10 上唇動脈 (superior labial artery) 較不可能與下列何者形成吻合 (anastomosis)?
下齒槽動脈之頦分枝 (mental branch of inferior alveolar artery)
眼動脈之鼻分枝 (nasal branch of ophthalmic artery)
眼動脈之角分枝 (angular branch of ophthalmic artery)
上顎動脈之眶下分枝 (infraorbital branch of maxillary artery)