Suboccipital trigonum
This is a topographical formation also known as trigonum arteriae vertebralis .
Boundaries[edit | edit source]
The medial border is formed by the rectus capitis posterior major muscle ,
laterally it is defined by the obliquus capitis superior muscle ,
caudally musculus obliquus capitis inferior .
The bottom is represented by the membrana atlantooccipitalis posterior, arcus posterior atlantis .
Content[edit | edit source]
The trigonum contains the vertebral artery before it passes through the atlantooccipital membrane , the suboccipital nerve emerges below the artery , and the major occipital nerve emerges below the caudal edge of the obliquus capitis inferior muscle . N. occipitalis major goes upwards and medially, pierces the edge of the semispinalis capitis muscle and the beginning of the trapezius muscle , continues into the occipital landscape.
Links[edit | edit source]
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External links[edit | edit source]
References[edit | edit source]
- GRIM, Miloš – DRUGA, Rastislav. Základy anatomie : 5. Anatomie krajin těla. 1. edition. Galén, 2008. 119 pp. ISBN 978-80-7262-179-8.
