File:GON and TON emergences.png

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Summary

The depth of emergences of the greater occipital nerve (GON) and third occipital nerve (3ON) from the back muscles. The reference line (a violet line in the right illustration) is established a line from the external occipital protuberance (EOP) to the vertebra prominens (7th cervical vertebra). The blue dots mean the emergences of GON from trapezius (a), semispinalis capitis (b) and occipital capitis inferior (c). The red dots mean the emergences of 3ON from trapezius (d), splenius capitis (e) and semispinalis capitis (f). Each indicating arrow means the depth of the emergence from the reference line. All numbers are presented in millimetre. Mastoid process (lowermost point), MP. From Kim et al.. Stereotactic topography of the greater and third occipital nerves and its clinical implication. Scientific reports 2018. 8:870. PMID: 29343808. DOI. Full Text.

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current11:48, 11 August 2020Thumbnail for version as of 11:48, 11 August 20201,500 ร— 911 (519 KB)Jeremy (talk | contribs)The depth of emergences of the greater occipital nerve (GON) and third occipital nerve (3ON) from the back muscles. The reference line (a violet line in the right illustration) is established a line from the external occipital protuberance (EOP) to the vertebra prominens (7th cervical vertebra). The blue dots mean the emergences of GON from trapezius (a), semispinalis capitis (b) and occipital capitis inferior (c). The red dots mean the emergences of 3ON from trapezius (d), splenius capitis (...

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