What is the vastus lateralis?
The vastus lateralis is a long, powerful muscle on the front of the thigh that extends from the pelvis to the kneecap. It is one of four muscles that make up the quadriceps, which are responsible for straightening the knee. The vastus lateralis is the most superficial of the quadriceps muscles, located on the outside of the thigh.
What is the origin insertion insertion action action and innervation of vastus lateralis?
Vastus Lateralis: Origin, Insertion, Action, Innervation. Origin: Upper aspect of the intertrochanteric line, base of the greater trochanter and onto its anterior surface, from the proximal portion of the lateral lip of the linea aspera, lateral intermuscular septum.
What nerve innervates the vastus lateralis?
The muscle is innervated by the muscular branches of the femoral nerve (L2, L3, and L4) – (Posterior division of femoral nerve) The vastus lateralis muscle is the largest and most powerful part of the quadriceps muscle in the thigh.
Where is the vastus intermedius located?
Vastus Intermedius is located centrally, underneath rectus femoris in the anterior compartment of the thigh and on each side of it: Vastus medialis and Vastus Lateralis respectively. It is one of the four muscles that form the quadriceps femoris muscle.
What is the origin of vastus medialis?
Vastus medialis is one of the four muscles that make up the quadriceps group of muscles. It originates from the upper part of the femoral shaft and inserts as a flattened tendon into the quadriceps femoris tendon, which inserts into the upper border of the patella.
Where is the vastus lateralis muscle?
thighThe vastus lateralis muscle is located on the lateral side of the thigh. This muscle is the largest of the quadriceps which includes: rectus femoris, vastus intermedius, and vastus medialis. Together, the quadriceps act on the knee and hip to promote movement as well as strength and stability.
What is the origin of vastus?
Vastus lateralis muscleOriginGreater trochanter, Intertrochanteric line, and Linea aspera of the FemurInsertionPatella by the Quadriceps tendon and Tibial tuberosity by the Patellar ligamentArterylateral circumflex femoral arteryNervefemoral nerve11 more rows
What is the action of the vastus lateralis?
The vastus laterails works with the other quad muscles to help extend your knee joint. It also is active in maintaining thigh and kneecap position while walking and running.
What is the vastus lateralis origin and insertion?
Vastus lateralis is the largest of all four quadriceps femoris muscles....Origin and insertion.OriginIntertrochanteric line, greater trochanter, gluteal tuberosity, linea aspera of femurInnervationFemoral nerve (L2-L4)3 more rows
What is vastus lateralis insertion?
Insertion: Lateral base and border of patella; also forms the lateral patellar retinaculum and lateral side of quadriceps femoris tendon. Action: Extends the knee. Innervation: Muscular branches of femoral nerve. Arterial Supply: Lateral circumflex femoral artery.
How do you remember the vastus lateralis?
2:203:16How to remember the muscles of the upper thigh - YouTubeYouTubeStart of suggested clipEnd of suggested clipBut the lodger also sits on that upper thigh at the front the quadriceps on the front of the upperMoreBut the lodger also sits on that upper thigh at the front the quadriceps on the front of the upper side and they have four plus the larger of the Sartorius.
What muscle is antagonist to the vastus lateralis?
Antagonist: Gastrocnemius, Popliteus, Gracilis, and Sartorius. Nerve Supply: Muscular branches of the femoral nerve (L2, L3, and L4).
Is vastus lateralis a quad muscle?
Vastus lateralis: This muscle connects your thigh bone to your kneecap. It runs along the outside of your thigh. It's the largest and strongest of the five quad muscles.
How do you relieve vastus lateralis pain?
1:382:21Self Care For Side of thigh or Hip Pain,Vastus Lateralis (IT Band Pain)YouTubeStart of suggested clipEnd of suggested clipAnd we would bring the leg across our but reach with the opposite hand and bring the heel to theMoreAnd we would bring the leg across our but reach with the opposite hand and bring the heel to the buttocks push. Away hold that for 10 to 12 seconds breathe in coordinate the exhale. And relax.
How do you treat a strained vastus lateralis?
Applying Ice to the affected area can help reduce inflammation and pain. Try applying ice for 10-15 minutes once or twice a day. Compression prevents additional swelling, so lightly wrap the injured area in a soft bandage or ace wrap. Elevation minimizes swelling.
Can you tear your vastus lateralis?
Quadriceps tendon rupture is a relatively uncommon injury. Isolated vastus lateralis ruptures are exceedingly rare with only 2 reported cases (5, 6). In both of these reported cases, the patients underwent successful repair using a suture anchor technique.
How do I strengthen my vastus lateralis?
7 Best Vastus Lateralis Exercises to Build Outer Quad SweepLeg Extensions (toes-in) What is this? ... Close Stance Leg Press. Sit down on the leg press machine. ... Dumbbell Lunges. Grab dumbbells with both hands using a neutral grip. ... Machine Hack Squats. What is this? ... Sissy Squat. ... Front Squat. ... Dumbbell Bulgarian Split Squat.
Importance of Muscle
Vastus lateralis muscle with other quadriceps muscle group as a whole work together helps you to stand up from sitting, stair climbing, running, squating and walking activity.
Vastus lateralis muscle exercise
Vastus lateralis muscle exercise are mainly 2 type – Stretching exercise and strengthening exercise.
Where does the vastus lateralis muscle come from?
The vastus lateralis muscle arises from several areas of the femur, including the upper part of the intertrochanteric line; the lower, anterior borders of the greater trochanter, to the outer border of the gluteal tuberosity, and the upper half of the outer border of the linea aspera.
Which nerve innervates the vastus lateralis muscle?
The vastus lateralis muscle is innervated by the muscular branches of the femoral nerve (L2, L3, and L4).
What is the largest muscle in the quadriceps?
Vastus lateralis muscle. The vastus lateralis ( / ˈvæstəs ˌlætəˈreɪlɪs, ˈræ -/ ), also called the ''vastus externus'' is the largest and most powerful part of the quadriceps femoris, a muscle in the thigh. Together with other muscles of the quadriceps group, it serves to extend the knee joint, moving the lower leg forward.
Where does the tibia connect to the quadriceps?
It ultimately joins with the other muscles that make up the quadriceps in the quadriceps tendon, which travels over the knee to connect to the tibia.
Where does the aponeurosis originate?
These form an aponeurosis, a broad flat tendon that covers the upper three-quarters of the muscle. From the inner surface of the aponeurosis, many muscle fibers originate. Some additional fibers arise from the tendon of the gluteus maximus muscle, and from the septum between the vastus lateralis and short head of the biceps femoris .
Where does the vastus lateralis originate?
Anatomy. The vastus lateralis originates on the upper inter-trochanteric line of your femur. It also arises from the base of the greater trochanter and the linea aspera, the supracondylar ridge, and the lateral intermuscular septum.
What is the vastus laterail?
The vastus lateralis is a muscle located on the lateral, or outside, part of your thigh. The muscle is one of the four quadriceps muscles and is the largest muscle of that group. The vastus laterails works with the other quad muscles to help extend your knee joint. It also is active in maintaining thigh and kneecap position while walking ...
What causes pain in the vastus lateralis?
Associated Conditions. There are many different injuries and conditions that may affect your vastus lateralis. These may inlcude: Patellofemoral stress syndrome (PFSS): This occurs when your kneecap tracks improperly in the femoral groove of your knee joint. This leads to pain and difficulty with walking and running.
How to get back to normal after a vastus lateralis injury?
Getting back to normal function after a vastus lateralis injury should be your main goal, and your physical therapist may have you engage in functional training to accomplish that goal. Balance exercises and sport-specific plyometric training may be done to ensure that your quad is functioning normally.
What muscles are involved in walking?
The vastus lateralis muscle works with your other quad muscles to extend, or straighten, your knee. Functional activities like walking, running, climbing stairs, and rising from a seated position are all accomplished with the quads. The vastus lateralis muscle, along with your iliotibial band, also helps to form the lateral wall of your thigh.
What nerve innervates the vastus lateralis?
Nerve innervation to the vastus lateralis is the femoral nerve arising from lumbar level two, three, and four. Blood supply to the muscle is via the lateral circumflex femoral artery. Emiliozv / Getty Images.
Why do you stretch your quads after a vastus lateralis injury?
After a vastus lateralis injury, quad stretching may be done to improve mobility and function of the muscle group.
What is the function of the Vastus Lateralis?
Vastus Lateralis works with the other quadriceps muscles to extend the knee, particularly with activities such as getting up from a chair, climbing stairs and cycling. It is also the recommended site for intramuscular injections in infants under seven months old and in those with loss of muscle tone, usually due to not being able to walk.
Where is the Vastus Externus located?
Vastus Lateralis, also known as Vastus Externus, is the largest and most powerful of the quadriceps muscles, found on the lateral (outer) side of the front of the thigh.
Which tendon inserts into the quadriceps?
Here, the vastus lateralis tendon inserts into one of the other quadriceps tendons ( rectus femoris) and the outer side of the patella. Some fibres blend with the iliotibial band (ITB) which to a large extent replaces the local part of the joint capsule and then attaches to the tibial tuberosity, just below the patella.
What causes a patella to tilt?
Tightness in vastus lateralis and resultant lateral retinaculum tightness can cause the patella to shift or tilt which can cause problems with patella tracking and increase the risk of patellar dislocation. This tightness can be treated with stretching exercises or lateral release knee surgery.
Where is the Vastus Lateralis located?
The Vastus Lateralis originates on the upper inter-trochanteric line of your femur. It also arises from the base of the greater trochanter and the linea aspera, the supracondylar ridge, and the lateral intermuscular septum.
Which muscle is involved in the lateral wall of the thigh?
The Vastus Lateralis muscle, along with your Iliotibial Band, also helps to form the lateral wall of your thigh. The Vastus Lateralis directly opposes the Vastus Medialis muscle on the inner portion of your thigh. These two muscles work together to maintain the appropriate position of your patella (kneecap) in the femoral groove of your thigh bone.
What muscle is used to straighten the knee?
The muscle is a large flat structure and has many attachments with a flat aponeurosis on your lateral thigh. The Vastus Lateralis muscle works with your other quadriceps muscles to extend, or straighten, your knee.
What is the VL muscle?
The Vastus Lateralis (VL) is a muscle located on the lateral, or outside, part of your thigh. The muscle is one of the four quadriceps muscles and is the largest muscle of that group. The Vastus Lateralis works with the other quad muscles to help extend your knee joint.
Can a strained quadriceps cause pain?
This leads to pain and difficulty with walking and running. – Vastus Lateralis Strain: A sudden force to your thigh may cause the quadriceps muscle to be strained. This can cause pain, swelling of the muscle, and bruising of your thigh, and may limit your ability to walk normally.
