Questions: All of the following insert onto the femur EXCEPT the adductor magnus adductor brevis adductor longus gracilis

The answer is the last one: gracilis.

Explanation for each option:

1. Adductor magnus: This muscle inserts onto the femur. It is a large muscle located in the medial compartment of the thigh and is responsible for adducting the thigh.

2. Adductor brevis: This muscle also inserts onto the femur. It is a smaller muscle in the medial thigh that assists in adduction of the thigh.

3. Adductor longus: Like the other adductors, this muscle inserts onto the femur. It is involved in adducting the thigh and is located in the medial compartment of the thigh.

4. Gracilis: This muscle does not insert onto the femur. Instead, it inserts onto the tibia. The gracilis is a long, thin muscle in the medial thigh that assists in adduction of the thigh and flexion of the knee.

In summary, the gracilis is the only muscle listed that does not insert onto the femur.