Digital morphology in the Chiroptera: the passive digital lock.

@article{Schutt1993DigitalMI,
  title={Digital morphology in the Chiroptera: the passive digital lock.},
  author={William A. Schutt},
  journal={Acta anatomica},
  year={1993},
  volume={148 4},
  pages={
          219-27
        }
}
Most bats hang from their hindlimb digits for extended periods of time during a variety of activities. Many species possess digital locking mechanisms consisting of modified digital flexor tendons and tendon retinacula. When the digits are flexed, scales or tubercles on the tendon surface engage transverse ribs which invest the inner surfaces of the tendon retinacula. This locks the tendon in place and prevents the digit from extending. Theoretically, by locking the digits during hanging… CONTINUE READING
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