To understand actions of the masticatory muscles, it is important to know their anatomical location and bony attachments in more depth.
- The temporalis muscle fills the temporal fossa.
- The lateral and medial pterygoid muscles are situated in the infratemporal fossa.
Bones forming the borders of the temporal fossa are as follows:
- Medial wall - parts of the frontal, parietal, sphenoid and temporal bones;
- Upper border - superior temporal line (parietal bone);
- Lateral wall - zygomatic arch (formed by the zygomatic process of the temporal bone and the temporal process of the zygomatic bone).
Bony structures bordering the infratemporal fossa include the following: