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spinal muscle of head in Medicine

spinal muscle of head

n.
  1. An inconstant extension of the spinal muscle of the neck to the occipital bone, sometimes fusing with the semispinal muscle of the head.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.