 | This article may require cleanup to meet Wikipedia's quality standards. The specific problem is: infobox is misleading; references 1 and 2 are broken. (April 2015) |
| Rectus femoris | |
|---|---|
 Muscles of the iliac and anterior femoral regions. (Rectus femoris highlighted in red.) | |
| Details | |
| Origin | Anterior inferior iliac spine and the exterior surface of the bony ridge which forms the iliac portion of the acetabulum |
| Insertion | Inserts into the patellar tendon as one of the four quadriceps muscles |
| Artery | Lateral femoral circumflex artery |
| Nerve | Femoral nerve |
| Actions | Knee extension; hip flexion |
| Antagonist | Hamstring |
| Anatomical terms of muscle | |
A pennate or pinnate muscle (also called a penniform muscle) is a type of skeletal muscle with fascicles that attach obliquely (in a slanting position) to its tendon. This type of muscle generally allows higher force production but a smaller range of motion.[1][2] When a muscle contracts and shortens, the pennation angle increases.[3]
- ^ Frederick H. Martini, Fundamentals Of Anatomy And Physiology Archived 2006-11-14 at the Wayback Machine.
- ^ "Jacob Wilson, Abcbodybuilding, The Journal of HYPERplasia Research". Archived from the original on 2008-12-05. Retrieved 2006-12-01.
- ^ Maganaris, Constantinos N; Baltzopoulos, Vasilios; Sargeant, Anthony J (15 October 1998). "In vivo measurements of the triceps surae complex architecture in man: implications for muscle function". The Journal of Physiology. 512 (Pt 2): 603–614. doi:10.1111/j.1469-7793.1998.603be.x. PMC 2231202. PMID 9763648.