Origin
Ischiopubic ramus of the pelvic bone.
Insertion
Tibia
Blood supply
Medial circumflex femoral artery.
Nerve supply
Obturator nerve.
Action
It helps to bring the thigh near the body. It also helps to bend the knee and rotate the leg when the knee is bending.
Disease/Injury
Gracilis muscle can get injured in any athletic activity like running. Proper stretching of gracilis muscle prior to activity helps to prevent the injury.
Muscle Exercise
You can perform the butterfly exercise to stretch the gracilis muscle.
Interesting facts
Wearing supportive shoes can prevent your thigh from getting injured.