tendinous sheath of flexor carpi radialis muscle

tendinous sheath of flex·or car·pi ra·di·a·lis mus·cle

[TA] the palmar carpal synovial tendon sheath enclosing the tendon of the flexor carpi radialis as it crosses the wrist. Synonym(s): vagina tendinis musculi flexoris carpi radialis [TA]