External surface of cranial base
Basis externa cranii
- Latin synonym: Basis cranii externa
Definition
The external surface of cranial base refers to the inferior aspect of cranium, also known as the norma basalis. It represents the bottom part of the skull when viewed from below. It can be divided into three sections: anterior, middle, and posterior. For more information about the norma basalis, please follow this link: norma basalis.
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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. 822.