Occipital angle of parietal bone
Angulus occipitalis ossis parietalis
- Related terms: Occipital angle
Definition
The occipital angle of parietal bone corresponds with the junction where the sagittal and lambdoid sutures meet. This specific location is referred to as the lambda. In the skull of a fetus and for approximately a year following birth, this area remains membranous, signifying incomplete fusion between the parietal and occipital bones. It is known as the posterior fontanelle and aids in the expansion of the growing brain of the infant.
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.818.
Anderson, B.W., Kortz, M.W., Black, A.C., et al. Anatomy, Head and Neck, Skull. [Updated 2023 Nov 9]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK499834/
