Here's a more detailed explanation:
* Location: It lies between the rectus femoris (anterior) and the vastus medialis (medial).
* Attachments:
* Proximal (top): It originates from the anterior and lateral surfaces of the femur (thigh bone).
* Distal (bottom): It inserts onto the patella (kneecap) via the quadriceps tendon.
* Function: Like other quadriceps muscles, it helps extend the knee joint.
It's important to note that the vastus intermedialis cannot be palpated (felt) through the skin because of its deep location.
