2022 AMI Online Salon

Infratemportal Fossa

Project Details

  • Entrant Name:  Jason Brady
  • Client: Lydia Gregg
  • Copyright:  Jason Brady, 2021
  • Medium/software used: Adobe Photoshop, Horos
  • Final presentation format: Anatomical plate
  • Primary Audience: Medical Students

Project Description

The purpose of this illustration is to teach medical students the spatial relationships between the nerves, arteries, and muscles within the infratemporal fossa. These structures are situated closely together in this cavity and are usually illustrated separately.Three views were chosen to capture the layered complexity of this cavity. The main superficial view shows the relationship between the maxillary artery and the lateral pterygoid muscle. It also depicts the relationship between the maxillary artery’s branches and the nerves arising from the mandibular branch of the trigeminal nerve. In the deeper view,  the lateral pterygoid muscle is removed to reveal the mandibular branch exiting through the foramen ovale. Particular attention was paid to how the nerves and arteries interweave between the pterygoid, buccinator, and temporalis muscles to reach their target structures through research and cadaveric dissection. The coronal section illustrates how the two heads of the lateral pterygoid muscle lay within the concavity of the fossa, and how the lateral and medial pterygoid muscles are positioned relative to the lateral pterygoid plate.