A table representing the physical landmarks for measurements of both triangles’ borders
Landmark | Description |
---|---|
A | Origin of RCPM muscle on C2 vertebral spinous process |
B | Insertion of RCPM on occipital bone |
C | Origin of OCS muscle on C1 vertebral transverse process |
D | Insertion of OCS muscle on occipital bone |
E | Origin of OCI muscle on C2 vertebral spinous process |
F | Insertion of OCI muscle on C1 vertebral transverse process |
G | Point of intersection between the inferior border of OCI and superior border of the lamina of C2 vertebra |
H | Origin of posterior intertransversarii muscle between the transverse processes of C1and C2 vertebrae |
I | Insertion of posterior intertransversarii muscle between the transverse processes of C1 and C2 vertebrae |
J | Start of the lamina of C2 vertebra as it relates to OCI |
K | Termination of the lamina of C2 vertebra |
RCPM, rectus capitis posterior major; OCS, obliquus capitis superior; OCI, obliquus capitis inferior.
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