The vascular stiffening mechanism in the tongue of the echidna (Tachyglossus aculeatus)

@article{Doran1970TheVS,
  title={The vascular stiffening mechanism in the tongue of the echidna (Tachyglossus aculeatus)},
  author={G. A. Doran and H Baggett},
  journal={The Anatomical Record},
  year={1970},
  volume={167}
}
An extensive vascular arrangement resembling erectile tissue is described in the tongue of an anteating Monotreme, the Echidna. Its possible function as a stiffening mechanism is discussed in relation to observations on living animals. 
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