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Lower limb. Foot. Cutaneous innervation of the lower limbs is the nerve supply to areas of the skin of the lower limbs (including the feet ) which are supplied by specific cutaneous nerves . Modern texts are in agreement about which areas of the skin are served by which nerves , but there are minor variations in some of the details.
Blood vessels and nerves can also be affected by the pressure caused by any swelling in the leg. If the pressure becomes great enough, blood flow to the muscle can be blocked, leading to a condition known as compartment syndrome. Severe damage to the nerve and blood vessels around a muscle can cause the muscle to die and amputation might be ...
Following is a list of spinal nerves and points that are characteristically belonging to the dermatome of each nerve: [4] Dermatomes of the lower limb (modified, from Fender, after Foerster) C2 – At least one cm lateral to the occipital protuberance at the base of the skull. Alternately, a point at least 3 cm (1.2 in) behind the ear.
Diagram of leg compartments. ... The lateral compartment of the leg is a fascial compartment of the lower leg. ... Superficial fibular nerve (L5, S1, S2) ...
The intermediate cutaneous nerve (middle cutaneous nerve) pierces the fascia lata (and generally the sartorius) about 7.5 cm below the inguinal ligament, and divides into two branches which descend in immediate proximity along the forepart of the thigh, to supply the skin as low as the front of the knee.
The common fibular nerve is the smaller terminal branch of the sciatic nerve. The common fibular nerve has root values of L4, L5, S1, and S2. It arises from the superior angle of the popliteal fossa and extends to the lateral angle of the popliteal fossa, along the medial border of the biceps femoris.
The tibial nerve gives off several branches to supply the back of the leg: [1] Muscular branches - Supplies tibialis posterior, flexor digitorum longus, flexor hallucis longus, and deep part of soleus. [1] Cutaneus branches - The medial calcaneal nerve pierces the flexor retinaculum to supply the skin of the back and lower surface of the heel. [1]
Usually, in this case, motor function of the lower leg will not be impaired. This is a key distinction between saphenous nerve neuropathy and lower back radiculopathy. Saphenous nerve neuropathy only demonstrates sensory alterations, while lumbar radiculopathy will affect the motor, sensory, and deep tendon reflexes of the lower leg. [6]