tendinous sheath of flexor hallucis longus muscle
Definition: the tibial tarsal synovial tendon sheath that envelops the tendon of the flexor hallucis longus as it passes into the foot deep to the flexor retinaculum.
Synonym(s): vagina tendinis musculi flexoris hallucis longiTA
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Examples: glitazone, GI cocktail, etc.

