The common flexor sheath of hand or the ulnar bursa[1] is a synovial sheath in the carpal tunnel of the human hand.

Common flexor sheath of hand
The synovial sheaths of the tendons on the front of the wrist and fingers. (Common sheath of flexores digitorum subliminis and profundus labeled at center right.)
Details
Identifiers
Latinvagina communis tendinum musculorum flexorum manus, vagina communis musculorum flexorum
TA98A04.8.04.007
TA22575
Anatomical terminology

It contains tendons of the flexor digitorum superficialis and the flexor digitorum profundus, but not the flexor pollicis longus.[2]

The sheath which surrounds the flexor digitorum extends downward about halfway along the metacarpal bones, where it ends in blind diverticula around the tendons to the index, middle, and ring fingers. It is prolonged on the tendons to the little finger and usually communicates with the synovial sheath of these tendons.

References

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  This article incorporates text in the public domain from page 457 of the 20th edition of Gray's Anatomy (1918)

  1. ^ Zuidema, Original ill., with descriptive legends by Leon Schlossberg; text ed. by George D. (1997). The Johns Hopkins atlas of human functional anatomy (4th ed.). Baltimore: Johns Hopkins University Press. pp. 14. ISBN 0-8018-5652-3. Ulnar bursa or common flexor.{{cite book}}: CS1 maint: multiple names: authors list (link)
  2. ^ "The wrist joint". Archived from the original on 2007-12-30. Retrieved 2008-01-17.
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