Anatomical Relations
The synovial sheaths of the digits of the hand line the tendons of the flexor digitorum superficialis and profundus. The sheath for the flexor pollicis longus is separate and continues as far as its insertion in the thumb.
Related parts of the anatomy
Structure
The synovial sheath of the flexor tendons forms within the palm and runs distally to the distal phalanx.
Function
The sheaths have an inner synovial membrane that produces fluid, providing lubrication for the friction-free movement of the tendons.
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Synovial Sheath
The tarsal sheath is the synovial sheath enveloping the lateral digital flexor tendon at the level of the tarsus.
