Arcuate eminence
Eminentia arcuata
Definition
The arcuate eminence stands out as a prominent rounded elevation on the anterior surface of the petrous part of the temporal bone. It is positioned to the lateral side of the trigeminal impression and the hiatuses for the greater and lesser petrosal nerves. This elevation is caused by the superior, or anterior, semicircular canal's dome that lies just beneath the surface within the petrous bone. Right next, lateral to the arcuate eminence, there’s a sunken area of bone called the tegmen tympani, which forms the roof of both the tympanic cavity and the mastoid antrum.
References
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Text written by Muhammad A. Javaid, MD, PhD © 2024 IMAIOS.
Drake, R.L., Vogl, A.W. and Mitchell, A.W.M. (2009). ‘Chapter 8: Head and Neck’ in Gray’s anatomy for Students. (2nd ed.) Philadelphia PA 19103-2899: Elsevier, pp. 826.
Standring, S. (2016). ‘Chapter 28: Intracranial region’ in Gray’s anatomy: the anatomical basis of clinical practice. (41st ed.) New York NY: Elsevier, pp. 431.
