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What are superficial nerves?

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Emily Cortez

Published Mar 18, 2026

What are superficial nerves?

The Anatomy of the Superficial Peroneal Nerve
The superficial peroneal nerve, also called the superficial fibular nerve, is a peripheral nerve of the calf. It's a terminal branch of the common peroneal nerve, which itself is a branch of the sciatic nerve.

Similarly, it is asked, where are superficial nerves?

Anatomical Course

The superficial fibular nerve is a terminal branch of the common fibular nerve. It arises at the neck of the fibula, descending between the fibularis muscles and the lateral side of the extensor digitorum longus. Here, it gives rise to motor branches, which supply the fibularis longus and brevis.

Beside above, what is superficial neuropathy? Superficial peroneal nerve syndrome is an entrapment neuropathy that results from mechanical compression of the nerve at or near the point where the nerve pierces the fascia to travel within the subcutaneous tissue. Surgical decompression of the mechanical entrapment usually provides relief from pain and paresthesia.

Accordingly, what does superficial peroneal nerve?

The superficial peroneal nerve (superficial fibular nerve) is a mixed nerve that carries sensory information from the anterolateral aspect of the leg and the greater part of the dorsum of the foot (except for the first web space).

How do you test for superficial peroneal nerve?

To test for the motor involvement of the superficial peroneal nerve and deep peroneal nerve, one must assess foot eversion (SPN) and foot/toe dorsiflexion (DPN). A finding of weakness of both foot eversion as well as foot/toe dorsiflexion suggests a lesion involving the common peroneal nerve.

Are nerves superficial or deep?

Superficial peroneal nerve
Superficial peroneal (fibular) nerve
Deep nerves of the front of the leg.
Details
FromCommon peroneal nerve
ToMedial dorsal cutaneous nerve, intermediate dorsal cutaneous nerve

What is the alveolar nerve?

The inferior alveolar nerve is a mandibular nerve branch. The inferior alveolar nerve is responsible for sensory innervation to the gingivae on the lower jaw. The inferior alveolar nerve also branches into the mylohyoid nerve and the mental nerve.

What are the signs and symptoms of superficial peroneal nerve entrapment?

Symptoms
  • Decreased sensation, numbness, or tingling in the top of the foot or the outer part of the upper or lower leg.
  • Foot that drops (unable to hold the foot up)
  • "Slapping" gait (walking pattern in which each step makes a slapping noise)
  • Toes drag while walking.
  • Walking problems.
  • Weakness of the ankles or feet.

What nerve Dorsiflexes the foot?

Deep fibular nerve: Innervates the muscles of the anterior compartment of the leg; tibialis anterior, extensor digitorum longus and extensor hallucis longus. These muscles act to dorsiflex the foot, and extend the digits.

What nerve causes pain on top of foot?

Damage to the peroneal nerve can cause pain, tingling or numbness at the top of the foot. It may become difficult to raise your toes, your toes or ankle may feel weak, or your foot may feel like it is dropping when walking.

How do you heal the superficial peroneal nerve?

Treatment of superficial peroneal neuritis varies based on the underlying cause of injury. Treatment can include NSAIDs, removal of triggers, physical therapy to break up scar tissue, or surgery.

What are symptoms of peroneal nerve damage?

When the nerve is injured and results in dysfunction, symptoms may include:
  • Decreased sensation, numbness, or tingling in the top of the foot or the outer part of the upper or lower leg.
  • Foot that drops (unable to hold the foot up)
  • "Slapping" gait (walking pattern in which each step makes a slapping noise)

Where does superficial peroneal nerve cross fibula?

The SPN becomes superficial, crossing the distal fibula from posterior to anterior on average 11cm proximal to the tip of the fibula and usually within 6 – 12 cm of the lateral malleolus tip[6,7] (Figure 3, Figure 4 and Figure 5).

Is the superficial peroneal nerve a major peripheral nerve?

The superficial peroneal nerve is the major lateral branch of the common peroneal nerve that innervates the peroneus longus and brevis muscles and provides sensation to the lateral aspect of the lower leg and the dorsal foot.

Is the superficial peroneal nerve a branch of the sciatic nerve?

Provides motor and sensory function in the calf and foot

The superficial peroneal nerve, also called the superficial fibular nerve, is a peripheral nerve of the calf. It's a terminal branch of the common peroneal nerve, which itself is a branch of the sciatic nerve.

Is the superficial fibular nerve motor or sensory?

Superficial Fibular Mononeuropathy

Lesions to the SFN are purely sensory and affect the nerve in the distal leg or ankle, that is, distal to the take off of the motor branches to the peroneus longus and brevis muscles.

Which of the following muscles is innervated by the superficial peroneal nerve?

The superficial peroneal nerve supplies motor innervation to the following muscles: Peroneus longus muscle. Peroneus brevis muscle.

How long does it take the peroneal nerve to heal?

The recovery time after a common peroneal nerve decompression at the knee is usually 3-4 months. For the first 6 weeks, we do not want to encourage the knee to form a lot of scar tissue around the area of the decompression, so we have patients on crutches.

Which muscles and what actions could be affected with damage to the superficial fibular nerve?

Which muscles and what actions could be affected with damage to the superficial peroneal nerve? What about sensation to the foot? The peroneus longus and brevis muscle which evert and plantar flex would be involved.

What causes superficial peroneal neuropathy?

Peroneal neuropathies are classically associated with external compression at the level of the fibular head. The most common etiology is habitual leg crossing (which compresses this area). Prolonged positioning with pressure at this area (e.g. sitting on an airplane or positioning during surgery) are other causes.

How do you stretch the superficial peroneal nerve?

This stretch can be performed by sitting on the ground with your feet straight out in front of you:
  1. Wrap a towel around your toes and gently pull back until you feel a stretch at the bottom of the foot and back of the lower leg.
  2. Hold this stretch for 30 seconds and repeat three times.

Is peroneal nerve damage painful?

Mild peroneal nerve injuries can cause numbness, tingling, pain and weakness. More severe injuries can be characterized by a foot drop, a distinctive way of walking that results from being unable to bend or flex the foot upward at the ankle.

Can sciatica affect peroneal nerve?

Partial sciatic nerve injuries usually affect the lateral division (common peroneal nerve) more commonly than the medial division (tibial nerve); this is believed to be due to limited supportive tissue surrounding the peroneal nerve and the fact the peroneal nerve is taut and secured at both its proximal and distal

What does the superficial fibular nerve branch into?

Superficial fibular (peroneal) nerve

It pierces the deep fascia in the distal third of the leg and subsequently divides into the medial dorsal cutaneous nerve and the intermediate dorsal cutaneous nerve.

What does peroneal nerve pain feel like?

The symptoms in peroneal neuralgia usually consist of an unpleasant painful sensation on the outer side of the lower leg and in the top of the foot. Patients report severe burning and stabbing pain. There may also be paralysis in the form of foot drop.

What nerve roots drop feet?

Foot drop is commonly caused by radiculopathy of the L5 nerve root. Sometimes, radiculopathy from L4 and/or S1 may also cause foot drop.

What does the common fibular nerve do?

The common peroneal nerve (also referred to as the common fibular nerve, external popliteal nerve, or lateral popliteal nerve) is a nerve in the lower leg that provides sensation over the posterolateral part of the leg and the knee joint.

Where is peroneal nerve pain felt?

A peroneal nerve injury is damage to the nerve on the outer part of the lower knee. This nerve sends impulses to and from the leg, foot, and toes. Damage can cause weakness, numbness, and pain.

How do you repair nerve damage in your leg?

To repair a damaged nerve, your surgeon removes a small part of the sural nerve in your leg and implants this nerve at the site of the repair. Sometimes your surgeon can borrow another working nerve to make an injured nerve work (nerve transfer).

How do I know if nerve damage is healing?

How do I know the nerve is recovering? As your nerve recovers, the area the nerve supplies may feel quite unpleasant and tingly. This may be accompanied by an electric shock sensation at the level of the growing nerve fibres; the location of this sensation should move as the nerve heals and grows.

How do you treat nerve damage?

How Are Nerve Pain and Nerve Damage Treated?
  1. Regulating blood sugar levels for people with diabetes.
  2. Correcting nutritional deficiencies.
  3. Changing medications when drugs are causing nerve damage.
  4. Physical therapy or surgery to address compression or trauma to nerves.
  5. Medications to treat autoimmune conditions.

What nerve wraps around the fibular head?

Within the popliteal fossa, the fibular nerve contributes to the sural nerve along a branch of the tibial nerve. The common fibular nerve then wraps around the fibular head connected to the periosteum (Figure 48.7). At this point, the nerve is very susceptible to compression and traumatic injury.

Is peroneal nerve damage reversible?

Aim: Common peroneal nerve (CPN) injuries represent the most common nerve lesions of the lower limb and can be due to several causative mechanisms. Although in most cases they recover spontaneously, an irreversible damage of the nerve is also likely to occur.

Where does the common fibular nerve run?

The common fibular nerve runs obliquely downward along the lateral border of the popliteal fossa (medial to biceps femoris) before branching, at the neck of the fibula, into the deep fibular and superficial fibular nerve. It lies between the tendon of the biceps femoris and the lateral head of the gastrocnemius.

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