Frontal angle of parietal bone

Angulus frontalis ossis parietalis

  • Related terms: Frontal angle

Definition

The frontal angle of parietal bone corresponds with the junction where the sagittal and coronal sutures meet. This specific location is referred to as the bregma. In the skull of a fetus and for approximately a year and a half following birth, this area remains membranous, signifying incomplete fusion between the parietal and frontal bones. It is known as the anterior fontanelle and aids in the expansion of the growing brain of the infant.

References

__________________________________________________________________

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/

Gallery