Masseteric fascia

The masseteric fascia (parotideomasseteric fascia) is a strong layer of fascia derived from the deep cervical fascia on the human head and neck. It covers the masseter, and is firmly connected to it. It may be divided into two layers: one layer passes into the superficial layer of the cervical fascia and the other into the medial pterygoid muscle.

Above, this fascia is attached to the lower border of the zygomatic arch, and behind, it invests the parotid gland proceeding into the parotid fascia.