Medical Dictionary

nuchal line

noun

medical Definition of nuchal line

:any of several ridges on the outside of the skull: as
a :one on each side that extends laterally in a curve from the external occipital protuberance to the mastoid process of the temporal bone called also superior nuchal line
c :one on each side that extends laterally from the middle of the external occipital crest below and roughly parallel to the superior nuchal line called also inferior nuchal line

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