Mastoid foramen

Foramen mastoideum

  • Synonym: Mastoid emissary foramen

Definition

The mastoid foramen transmits a vein to the transverse sinus and a small branch of the occipital artery to the dura mater. The position and size of this foramen are very variable; it is not always present; sometimes it is situated in the occipital bone, or in the suture between the temporal and the occipital.

References

__________________________________________________________________

Text written by Muhammad A. Javaid, MD, PhD © 2024 IMAIOS.

  • Standring, S. (2016). ‘Chapter 27: External skull’ in Gray’s anatomy: the anatomical basis of clinical practice. (41st ed.) New York NY: Elsevier, pp. 419.

  • Standring, S. (2016). ‘Chapter 28: Intracranial region’ in Gray’s anatomy: the anatomical basis of clinical practice. (41st ed.) New York NY: Elsevier, pp. 432 & pp. 439.

  • XR Anatomy (copyright 2023-24). Available at: https://xranatomy.com/temporal-bone/  (Updated: 10th Mar, 2023; Accessed 3rd April, 2024)

Gallery