of the obturator nerve (during the deep exposure).
– the sciatic nerve is anterior and lateral to the ischial tuberosity (the origin of the hamstrings)
– the femoral triangle – inguinal ligament, pectineus and adductor longus medially, sartorius and iliopsoas laterally
– tendon blood suppy – from vessels in the perimysium, the periosteal insertion, the surrounding tissue via vessels in the paratenon or mesotenon.
– Tendons surrounded by paratenon have been referred to as vascular tendons and those surrounded by a tendon sheath, as avascular tendons.
– In tendons surrounded by a paratenon, vessels enter from many points.
– The vascular pattern of a flexor tendon within a tendon sheath is quite different – here the mesotenons are reduced to vincula.
– so in the flexor tendons – blood supply is probably mostly from mesotenon