Petrous Bone

The dense rock-like part of temporal bone that contains the INNER EAR. Petrous bone is located at the base of the skull. Sometimes it is combined with the MASTOID PROCESS and called petromastoid part of temporal bone.

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Do not include MeSH terms found below this term in the MeSH hierarchy.

Tree Number(s): A02.835.232.781.885.681

MeSH Unique ID: D010579

Entry Terms:

• Bone, Petrous
• Petrous Bones
• Petrous Pyramid
• Petrous Apex

All MeSH Categories
Anatomy Category
Musculoskeletal System
Skeleton
Bone and Bones
Skull
Temporal Bone
Petrous Bone