External acoustic pore

Study entry

Description

The entrance of the external acoustic meatus, which leads to the tympanic membrane.

Relations

Its upper margin and the lower margin of the orbit define the Frankfurt horizontal plane (anatomical position of the skull).

Source: cap. 8, «Cráneo»

Other structures in this region

• Squamous part of the frontal bone
• Orbital part of the frontal bone
• Glabella
• Superciliary arch
• Supraorbital margin
• Supraorbital foramen (notch)
• Frontal eminence
• Frontal crest