Patellar Ligament
The structure indicated is the
patellar ligament. The
quadriceps muscles of the thigh attach to and encapsulate the
patella (the kneecap), via the
quadriceps tendon. The patella ligament is essentially the continuation of the quadriceps tendon inferior to the patella, attaching it to the
tibial tuberosity. Learn more about the
muscles of the thigh in this tutorial.