Generality
The crural nerve is an important peripheral nerve of the lower limbs, which derives from the so-called lumbar plexus and which, with its branches, innervates the groin, the thigh, the leg and part of the foot.
Image modified from the site: Cursoenarm.net
Having both a motor function and a sensory function, the crural nerve contains the nerve fibers of the spinal roots L2, L3 and L4. Along its path, the nerve in question gives rise to several branches (or branches): the so-called abdominal branches of the crural nerve, the so-called branches of the anterior division of the crural nerve and, finally, the so-called branches of the posterior division of the crural nerve.
At the motor level, the crural nerve controls the flexor muscles of the hip and the extensor muscles of the knee. At the sensory level, however, it controls the sensitivity of the antero-medial portion of the thigh, the medial side of the leg and the medial side of the foot.
The crural nerve can be the victim of damage or damage.
