Sensory ability in the narwhal tooth organ system

  title={Sensory ability in the narwhal tooth organ system},
  author={M. Nweeia and F. Eichmiller and P. Hauschka and Gretchen A. Donahue and J. Orr and S. Ferguson and Cortney A. Watt and J. Mead and Charles W. Potter and R. Dietz and A. Giuseppetti and Sandie R Black and A. Trachtenberg and W. Kuo},
  journal={The Anatomical Record},
  • M. Nweeia, F. Eichmiller, +11 authors W. Kuo
  • Published 2014
  • Biology, Medicine
  • The Anatomical Record
  • The erupted tusk of the narwhal exhibits sensory ability. The hypothesized sensory pathway begins with ocean water entering through cementum channels to a network of patent dentinal tubules extending from the dentinocementum junction to the inner pulpal wall. Circumpulpal sensory structures then signal pulpal nerves terminating near the base of the tusk. The maxillary division of the fifth cranial nerve then transmits this sensory information to the brain. This sensory pathway was first… CONTINUE READING
    28 Citations
    The narwhal (Monodon monoceros) cementum–dentin junction: A functionally graded biointerphase
    • K. Grandfield, N. L. Chattah, +6 authors S. Ho
    • Materials Science, Medicine
    • Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine
    • 2014
    • 5
    Multiple complex somatosensory systems in mature rat molars defined by immunohistochemistry.
    • 4
    • PDF
    Evolutionary Tinkering of the Mandibular Canal Linked to Convergent Regression of Teeth in Placental Mammals
    • 4
    • PDF
    Tusks, the extra-oral teeth.
    Formation, structure, and function of extra‐skeletal bones in mammals
    • A. Nasoori
    • Biology, Medicine
    • Biological reviews of the Cambridge Philosophical Society
    • 2020
    • 2
    Neuroanatomy and inner ear labyrinths of the narwhal, Monodon monoceros, and beluga, Delphinapterus leucas (Cetacea: Monodontidae)
    • 6
    • Highly Influenced
    Enamel Microstructure in Cetacea: a Case Study in Evolutionary Loss of Complexity
    • 3
    Bioinspired Bouligand cellulose nanocrystal composites: a review of mechanical properties
    • B. Natarajan, Jeffrey W. Gilman
    • Materials Science, Medicine
    • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
    • 2017
    • 21


    Topical review. Dental pain and odontoblasts: facts and hypotheses.
    • 99
    Displacement of the contents of dentinal tubules and sensory transduction in intradental nerves of the cat
    • 60
    Morphological features of dentine and pulp related to dentine sensitivity.
    • G. Holland
    • Chemistry, Medicine
    • Archives of oral biology
    • 1994
    • 58
    Odontoblast: a mechano-sensory cell.
    • 76
    Dental sensory receptors.
    • M. Byers
    • Chemistry, Medicine
    • International review of neurobiology
    • 1984
    • 292
    Die Nerven der menschlichen Zahnpulpa
    • 9
    Responses of feline intradental sensory nerves to hyperosmotic stimulation of dentin.
    • 20
    Dynamics of the pulpo-dentin complex.
    • D. Pashley
    • Chemistry, Medicine
    • Critical reviews in oral biology and medicine : an official publication of the American Association of Oral Biologists
    • 1996
    • 349
    Teeth and tooth nerves
    • 160