There was included even the tendinous
portion of that small slip of muscle taking its origin from the
anterior aspect of the head and upper portion of the ulna, and
which is so delicate and insignificant as to be generally
overlooked by anatomists. There was great pain along the course
of the tract of abstraction of the tendon.
Pinkerton describes a carter of thirty-one who was bitten on the
thumb by a donkey. The man pulled violently in one direction, and
the donkey, who had seized the thumb firmly with his teeth,
pulled forcibly in the other direction until the tissues gave way
and the man ran off, leaving his thumb in the donkey's mouth. The
animal at once dropped the thumb, and it was picked up by a
companion who accompanied the man to the hospital. On examination
the detached portion was found to include the terminal phalanx of
the thumb, together with the tendon of the flexor longus pollicis
measuring ten inches, about half of which length had a fringe of
muscular tissue hanging from the free borders, indicating the
extent and the penniform arrangement of the fibers attached to
it. Meyer cites a case in which the index finger was torn off and
the flexor muscle twisted from its origin.
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