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Quadriceps Femoris (Group Overview)
Region: Hip & Thigh Muscles · All hip & thigh muscles
Quadriceps Femoris (Group Overview) at a glance
| Origin | Pelvis and femur (rectus femoris from the ilium; the vasti from the femur) |
|---|---|
| Insertion | Patella, then via the patellar ligament to the tibial tuberosity |
| Actions | Straighten the knee — the body's main anti-gravity extensor for standing and walking |
| Nerve supply | Femoral nerve (L2–L4) |
◆ Good to know
Rectus femoris plus the three vasti converge on the patella, a sesamoid that lengthens the group's lever arm; the knee-jerk reflex tests this group (L3–L4).
More Hip & Thigh Muscles
Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.