primitive costal arch


Any of the arches formed from the costal processes or elements that give rise to the ribs in the thoracic region of the embryonic vertebral column.

Nearby words

  1. primipara,
  2. primitive,
  3. primitive baptist,
  4. primitive cell,
  5. primitive church,
  6. primitive friends,
  7. primitive furrow,
  8. primitive gut,
  9. primitive methodist,
  10. primitive node

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.