• Popliteal artery: continuation of the femoral artery at the adductor hiatus / popliteal pulse
• Popliteal vein (where small sephaneous vein joins)
• Tibial and common fibular* branches of the sciatic nerve (superficial to vein)
• posterior cut. n. of thigh
• Medial sural cut. nerve
• Popliteallymph nodes & vessels
Describe a popliteal (Baker's) cyst.
• Synovial lining of knee joint herniatesthrough capsule into popliteal fossa
• Rupture causes sudden calf pain & swelling similar to deep venous thrombosis
Describe a psoas abscess.
Infection caused by tuberculosis of the lumbar vertebrae or a fistula related to diverticulitis of sigmoid colon may track along the psoas fasciadeep to the inguinal ligament, producing a bulge in the upper thigh and referred pain to the hip and/or knee joints
Referred pain in the hip or knee.
Because articular branches of the femoral(L2-L4) and obturator(L2-L4) nerves innervate both the hip and knee joints, hip pain often is referred to the knee; on the other hand, pain may be referred to the hip from the vertebral column & sacroiliac joint
Femoral nerve (L2-L4)
– Cutaneous branches
• Anterior Femoral Cutaneous nerve (L2, L3)
– Supplies anterior part of anterior thigh
• Saphenous nerve (L3)
– Supplies medial knee
– Motor branches supplies
• Quadriceps femoris (L2,L3, L4)
• Sartorius (L2, L3)
• Pectineus (L2, L3)
• Iliacus (L2, L3)
What nerve innervates the psoas muscle?
anterior rami L1-L3
– Lateral Femoral cutaneous nerve (L2-L3 green)
• Supplies skin of anterolateral thigh – Femoral br. of genito femoral nerve(L1-L2 red)
• Skin of central upper anterior thigh
For which muscles does the obturator artery supply blood?
– gracilis, obturatorexternus & adductor muscles
For which muscles do the perforating branches of the deep artery of the thigh supply blood?
–adductor magnus, hamstring part
Obturator nerve (L2-L4) is the primary nerve of the medial thigh, describe it's innervations.
–Twobranches divided by adductor brevis muscle
•Adductormagnus(adductor part) (L2, L3, L4)
•Adductorlongus (L2,L3, L4)
•Gracilis (L2, L3)
•Adductorbrevis (L2,L3, L4)
•Cutaneous branch of obturator (L2, L3)>Skinof central medial thigh
What is the innervation of the tibial part of the sciatic nerve (L4-S3)
adductor magnus (hamstring part L4)
- Skin of upper medial thigh (ilioinguinal nerve, wierd green)