Infratemporal space

Infratemporal Space

The Infratemporal Space is an anatomical region located in the human skull. It is a complex and irregularly shaped space, which is situated below and medial to the zygomatic arch. It is not a closed space, but communicates with several other spaces.

Etymology

The term "Infratemporal" is derived from the Latin words "infra" meaning below and "temporal" referring to the temporal bone of the skull. Thus, "Infratemporal" literally means "below the temporal bone".

Anatomy

The Infratemporal Space is bounded by several structures. Anteriorly, it is bounded by the maxilla and the zygomatic bone. Posteriorly, it is bounded by the styloid process and the mastoid process of the temporal bone. Medially, it is bounded by the lateral pterygoid plate of the sphenoid bone. Laterally, it is bounded by the ramus of the mandible.

The Infratemporal Space contains several important structures. These include the temporalis muscle, the lateral pterygoid muscle, the medial pterygoid muscle, the maxillary artery, the pterygoid venous plexus, and branches of the mandibular nerve.

Clinical Significance

Due to its complex anatomy and the presence of several vital structures, the Infratemporal Space is clinically significant. It can be affected by various pathological conditions such as infections, tumors, and trauma. Infections can spread from the oral cavity to the Infratemporal Space, leading to Infratemporal space abscess. Tumors can also arise in this space, leading to Infratemporal fossa syndrome. Trauma to the Infratemporal Space can lead to fractures of the surrounding bones and damage to the contained structures.

See Also

• Temporal bone
• Maxilla
• Zygomatic bone
• Sphenoid bone
• Mandible

References

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