the angle of the mouth anteriorly,[1] the masseter muscle posteriorly,[1] the zygomatic process of the maxilla and the zygomaticus muscles superiorly, the depressor anguli oris muscle and the attachment of the deep fascia to the mandible inferiorly, the buccinator muscle medially (the buccal space is superficial to the buccinator),[1] the platysma muscle, subcutaneous tissue and skin laterally (the space is deep to platysma),[1]