Posterior Thigh and Knee Hamstring Muscles Medial and

Posterior Thigh and Knee Hamstring Muscles

Medial and Lateral Hamstrings

Over-striding is a mechanism of HS injury Discuss:

Semitendinosus Semimembranosus Biceps Femoris Long Head Short Head Gracilis Adductor Magnus Popliteal Fossa

Nerves & Vessels Posterior Thigh u Nerves – Posterior Femoral Cutaneous n. – Sciatic n. u Tibial n. u Common fibular (peroneal) n. u Arteries – Perforating branches of profunda femoris a. – Popliteal a.

Posterior Femoral Cutaneous n. Sciatic n. Tibial n. Common fibular n. Popliteal a. Great (Long) Saphenous v.

Popliteal Fossa u Boundaries – Med/lat hamstrings – Med/lat gastrocnemius u Contents – Tibial and common fibular nn. – Popliteal v. – Popliteal a. u Superior medial/lateral genicular aa. u Middle genicular a. u Inferior medial/lateral genicular aa.

Tibial n. Common Fibular n. Popliteal a. Popliteal v. Genicular aa.

Genicular Anastomosis

Descending Genicular Branch of Femoral a. Superior Medial/Lateral Genicular aa. Middle Genicular a. Inferior Med-/Lateral Genicular aa. Descending branch Lat. Fem. Circumflex a. Anterior and Posterior Tibial aa. Recurrent aa. Circumflex Fibular a.

Nerve or Artery Entrapment Popliteal fossa is an entrapment site. May result from a cyst, hematoma, or even abnormal anatomy (shown)