Rectus femoris
Rectus Femoris
The Rectus Femoris (pronounced: REK-tus FEM-or-is) is one of the four quadriceps muscles of the human body. The others are the Vastus Lateralis, Vastus Medialis, and Vastus Intermedius.
Etymology
The term "Rectus Femoris" is derived from Latin, where "Rectus" means straight, and "Femoris" refers to the femur or thigh. Thus, the term can be translated as the "straight muscle of the thigh".
Function
The Rectus Femoris is the only muscle of the quadriceps group that crosses the hip joint and thus contributes to hip flexion. It also plays a crucial role in knee extension. This muscle is essential for movements such as walking, running, and jumping.
Related Terms
- Quadriceps Femoris: The muscle group consisting of the Rectus Femoris, Vastus Lateralis, Vastus Medialis, and Vastus Intermedius.
- Hip Flexion: The movement that decreases the angle between the thigh and the torso.
- Knee Extension: The movement that increases the angle between the thigh and the lower leg.
See Also
External links
- Medical encyclopedia article on Rectus femoris
- Wikipedia's article - Rectus femoris
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