Which nerve follows the medial border of the biceps femoris muscle (musculus biceps femoris)?

The nerve that follows the medial border of the biceps femoris muscle is the Sciatic Nerve. Here are the steps to identify it:

1. Identify the biceps femoris muscle: This is one of the three hamstring muscles that are located at the back of the thigh. It has a long head and a short head. The long head originates from the lower and inner impression on the back part of the tuberosity of the ischium, while the short head originates from the lateral lip of the linea aspera, between the adductor magnus and vastus lateralis.

2. Locate the medial border: The medial border of the biceps femoris muscle is the inner side of the muscle, which is closer to the midline of the body.

3. Trace the path of the sciatic nerve: The sciatic nerve is the largest nerve in the body. It originates from the sacral plexus and runs down the posterior thigh. It follows the medial border of the biceps femoris muscle.

4. Confirmation: If you have followed these steps correctly, you should have identified the sciatic nerve as the nerve that follows the medial border of the biceps femoris muscle.