The synovial tendons are nourished by vessels from 3 areas: the musculotendinous junction; the osseotendinous junction; and vessels from various surrounding connective tissue such as the paratenon, mesotenon and vincula. The main blood supply to the bulk of sheathed tendons is from the vincula. The FDS and FDP receive blood from both the vincula brevia and vincula longa. There are 5 vincula - 2 short (brevia) and 3 long (longa).
