Lateral aspect of the linea aspera
Lateral intermuscular septum
|Insertion||Lateral aspect of the patella
The quadriceps tendon, which inserts into the patellar tendon, which connects onto the tibial tuberosity
|Nerve||Femoral nerve (L2, L3, L4)|
|Artery||Lateral circumflex femoral artery
Perforating arteries of the profunda femoris
Location & Overview
The vastus lateralis is located in the anterior compartment of the thigh. It is one of the four quadricep muscles. It is the most lateral and largest of these quadricep muscles. The other three quadricep muscles are: the vastus intermedius, vastus medialis and rectus femoris  .
Origin & Insertion
The vastus lateralis originates on the femur’s greater trochanter, intertrochanteric line, lateral aspect of the linea aspera, gluteal tuberosity, and the lateral intermuscular septum . The lateral intermuscular septum of the thigh is a fold of deep fascia which separates the anterior compartment of the thigh from the posterior compartment of the thigh. The lateral intermuscular septum divides the vastus lateralis and the biceps femoris muscle which is where it provides this origin point .
The vastus lateralis inserts into the quadriceps tendon. The quadriceps tendon inserts on patellar tendon which inserts onto the tibial tuberosity. In addition to the patellar tendon, the vastus lateralis also inserts onto the lateral aspect of the patella .
The vastus lateralis muscle is a primary extender of the knee. It also works together with the vastus medialis to stabilise the knee joint. .
The vastus lateralis muscle is innervated by the femoral nerve. The nerve roots involved are L2, L3 and L4. .
The vastus lateralis primarily gets its blood supply from the lateral circumflex femoral artery. It also receives some blood from the perforating arteries of the profunda femoris .
Want some flashcards to help you remember this information? Then click the link below:
Vastus Lateralis Flashcards
|↑1, ↑6||Bordoni B, Varacallo M. Anatomy, Bony Pelvis and Lower Limb, Thigh Quadriceps Muscle. 2021 Jul 22. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan–. PMID: 30020706.|
|↑2||Khan A, Arain A. Anatomy, Bony Pelvis and Lower Limb, Anterior Thigh Muscles. 2021 Jul 26. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan–. PMID: 30860696.|
|↑3, ↑5, ↑7, ↑8||Biondi NL, Varacallo M. Anatomy, Bony Pelvis and Lower Limb, Vastus Lateralis Muscle. [Updated 2021 Aug 13]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK532309/|
|↑4||Hayashi A, Maruyama Y. Lateral intermuscular septum of the thigh and short head of the biceps femoris muscle: an anatomic investigation with new clinical applications. Plast Reconstr Surg. 2001 Nov;108(6):1646-54. doi: 10.1097/00006534-200111000-00032. PMID: 11711941.|