Femoral nerve
Femoral Nerve
The Femoral Nerve (/fɪˈmɔːrəl nɜːrv/), is a major nerve in the human body that supplies the anterior compartment of the thigh.
Etymology
The term "Femoral" is derived from the Latin word femur, which means thigh. The term "nerve" comes from the Latin nervus, meaning sinew or string.
Anatomy
The Femoral Nerve is the largest branch of the lumbar plexus, originating from the dorsal divisions of the second, third, and fourth lumbar nerves (L2, L3, L4). It descends through the fibers of the psoas major muscle, emerging from the muscle at the lower part of the border, and then passes down between the iliacus muscle and psoas major, and under the inguinal ligament into the thigh.
Function
The Femoral Nerve provides motor innervation to the muscles of the anterior thigh, enabling extension of the knee and sensory innervation to the anterior thigh and medial leg.
Related Terms
- Lumbar Plexus: A network of nerve fibers in the lumbar region.
- Psoas Major Muscle: A long fusiform muscle located on the side of the lumbar region of the vertebral column and brim of the lesser pelvis.
- Iliacus Muscle: A flat, triangular muscle which fills the iliac fossa.
- Inguinal Ligament: A band running from the pubic tubercle to the anterior superior iliac spine.
See Also
External links
- Medical encyclopedia article on Femoral nerve
- Wikipedia's article - Femoral nerve
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