• Dave@lemmy.nz
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      11 hours ago

      It says spines, rather than spine. The esophagus is covered in spines (think like the spines on a porcupine, not a backbone).

    • Hexarei@programming.dev
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      12 hours ago

      Seems like they meant spines to me? As in those little spikey spines pointing backwards down the esophagus?