1 — Gastrocnemius, lateral head; 2 — Popliteus; 3 — Posterior cruciate ligament; 4 — Anterior cruciate ligament; 5 — Popliteal artery and vein; 6 — Biceps femoris; 7 — Quadriceps femoris; Tendon; 8 — Skin; 9 — Suprapatellar bursa; 10 — Articular surface of patella; 11 — Subcutaneous prepatellar bursa; 12 — Patella; 13 — Medial condyle of femur; 14 — Alar folds; 15 — Infrapatellar synovial fold; 16 — Deep infrapatellar bursa;
17 — Patellar ligament; 18 — Tibia
