下項線 - Linea nuchalis inferior
Running from the middle of the median nuchal line, across either half of the nuchal plane is the inferior nuchal line. The inferior nuchal line and the area below it receive the insertions of the Recti capitis posteriores major and minor.
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
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