- Discussion:
- index lumbrical is adherent to roof of
thenar bursa;
- second, third, & 4th lumbrical sheaths are not so easily demonstrated,
but when present usually overlie
mid palmar bursa or space;
- lumbar sheaths extend from the web area to the center of the palm;
- pus from a web area can ascend index lumbrical sheath and
rupture into
thenar bursae or space;
- long, ring, and little lumbrical sheaths may rupture into
midpalmar space;
