Biceps: 2 headed muscle; Femoris: at the femur (thigh bone) The two heads of biceps femoris original quite far apart from each other. BICEPS FEMORIS. M. biceps femoris: The biceps femoris muscle arises from the ischial tuberosity. However, your doctor is being more specific. The biceps femoris is one of the large muscles in the posterior compartment of the thigh and a component of the hamstrings. ORIGIN Long head: upper inner quadrant of posterior surface of ischial tuberosity. Biceps Femoris is the most lateral of the muscles in the posterior thigh – the common tendon can be felt laterally at the posterior knee. Biceps Femoris: The biceps femoris muscle has two heads – a long head and a short head. Short head:middle third of linea aspera, lateral supracondylar ridge of femur : INSERTION Styloid process of head of fibula.

Let's look at the muscle in a bit more depth. Background: Avulsion of the biceps femoris from the fibula and proximal tibia is encountered in clinical practice. Anatomy of the Biceps Femoris Muscle.
Yes, technically the biceps femoris is part of the hamstring, so both your coach and the doctor are correct. lateral collateral ligament and lateral tibial condyle : ACTION Flexes and laterally rotates knee.
The muscle forms a thin aponeurosis that is inserted into the deep fascia of the proximal hind limb, the head of the fibula, the lateral tibial condyle, and the capsule of the knee joint. The biceps femoris muscle runs centrally down the back of the thigh to the knee. While the anatomy of the primary posterolateral corner structures has been qualitatively and quantitatively described, a quantitative analysis regarding the insertions of the biceps femoris on the fibula and proximal tibia is lacking. The "long head" arises from the pelvis, and the "short head" arises from the femur. It has a long and a short head, each with …