tendinous sheath of flexor pollicis longus muscle
Definition: the palmar carpal synovial tendon sheath that envelops the tendon of the flexor pollicis longus in its course through the carpal canal; it is continuous with the digital sheath of the thumb, the two generally being considered as one sheath.
Synonym(s): vagina tendinis musculi flexoris pollicis longiTA, radial bursa
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Examples: glitazone, GI cocktail, etc.