Coarctation of the stapedial artery: an unusual adaptive response to competing functional demands in the middle ear of some eutherians.

@article{Diamond1989CoarctationOT,
  title={Coarctation of the stapedial artery: an unusual adaptive response to competing functional demands in the middle ear of some eutherians.},
  author={Michael K. Diamond},
  journal={Journal of morphology},
  year={1989},
  volume={200 1},
  pages={
          71-86
        }
}
In primitive eutherians, the stapedial artery is the primary supplier of blood to the nonneural tissues of the head. Beyond a certain body size, the stapedial artery can no longer function as the sole supplier to its original territory because the diameter of its stem is limited by the size of the intercrural foramen of the stapes, which exhibits strong negative allometry. Some eutherians have extended the upper limit that the diameter of the stapedial stem can attain by developing a… CONTINUE READING
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