Biceps Femoris Short Head

Sciatic Nerve, (Peroneal Division) Posterior Division, Sacral Plexus, L5, SI, S2. 

From the lateral lip of the linea aspera and the upper part of the lateral supracondylar line. 

Into the head of the fibula and the lateral condyle of the tibia. 

The patient prone with the knee flexed to ninety degrees. 

Palpate the tendon of the long head of the biceps grasp it with the fingertips insert the electrode just medial to it, four fingerbreadths proximal to the fibular head (FH). 

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Biceps femoris — long head or short head ... 

Fig. 13.34a-c Acute tear of the distal short head of the hiceps muscle in a soccer player, a Short-axis and b long-axis 12-5 MHz US images show a hypoechoic hematoma (arrow) located within the short head (SH) of the biceps femoris muscle. The overlying long head (LH) is normal, c Photograph of the posterior thigh reveals the ecchymotic skin (arrowhead) related to muscle rupture... 

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