Origin
Femur
Insertion
Suprapatellar bursa at the knee joint.
Blood supply
Femoral artery.
Nerve supply
Femoral nerve.
Action
It helps to extend the knee.
Disease/Injury
The main cause for chronic knee pain is injury to articularis genu muscle; the injury can be due to blow to the inner side of knee.
Muscle Exercise
You can practice articularis stretch to strengthen this muscle. Stand beside the wall and bend one knee backwards and hold it with one hand, take support of wall with the other hand. Hold the position for 10 seconds and relax for 2 seconds. Then repeat the same with the other leg. Do it 5 times per day.
Interesting fact
It is the smallest muscle of thigh.