Anatomy of the nerves and blood vessels of the anterior thigh: origin, course, and termination
Course and branches of the femoral nerve
The femoral nerve originates from the lumbar plexus and supplies motor and sensory functions to the anterior thigh. It travels through the femoral triangle and gives rise to muscular and cutaneous branches.
Anatomy of the Nerves and Blood Vessels of the Anterior Thigh
Course and Branches of the Femoral Nerve
The femoral nerve is one of the major nerves supplying the lower limb. It originates from the lumbar plexus and travels down the anterior thigh, providing motor and sensory functions.
Origin of the Femoral Nerve
The femoral nerve arises from the ventral rami of the L2, L3, and L4 spinal nerves in the lumbar plexus. It exits the pelvis through the retroinguinal space.
Course of the Femoral Nerve
After passing through the inguinal ligament, the nerve enters the femoral triangle, lying lateral to the femoral artery.
Branches of the Femoral Nerve
- Muscular branches: Innervate the quadriceps femoris, sartorius, and pectineus muscles.
- Cutaneous branches: Provide sensation to the anterior thigh via the anterior cutaneous branches.
- Saphenous nerve: A long sensory branch that supplies the skin of the medial leg and foot.
Clinical Significance
Damage to the femoral nerve can lead to quadriceps weakness, loss of knee extension, and diminished sensation in the anterior thigh and medial leg.
This knowledge is essential for clinicians diagnosing and treating nerve injuries affecting the lower limb.
Tags
Recommended Reads
Explore related articles that might interest you
Important Nerve Plexuses of the Posterior Abdominal Wall
Major Muscles of the Anterior Thigh and Their Nerve Supply
Anatomical basis and clinical relevance of suprapubic cystostomy
Anatomical routes used for carotid and vertebral angiography
Midsagittal Section of the Male and Female Pelvis
Important Nerve Plexuses of the Posterior Abdominal Wall
