Glasscock triangle

The Glasscock triangle is located at the Skull base.

Anatomy

The Glasscock triangle is bounded as follows[^1]:

• Anteromedially: The lateral surface of the mandibular nerve distal to the point where the Greater petrosal nerve crosses beneath the lateral surface of the Trigeminal nerve[^1].

• Posterolaterally: The posterolateral boundary is formed by the anterior border of the greater petrosal nerve.

Within the Glasscock triangle, the Arteria meningea mediaForamen spinosum. Opening the floor of the Glasscock triangle exposes the Fossa infratemporalis

The Glasscock triangle contains the following anatomical structures[^2]:

• Nervus petrosus major

• Lesser petrosal nerve

• internal carotid artery

• Foramen spinosum

• Arteria meningea media

• Auditory tube

• Tensor tympani muscle

Figure