Which muscles are innervated by the superficial branch of the common fibular nerve?

Which muscles are innervated by the superficial branch of the common fibular nerve?

• A. Soleus and plantaris
• B. Fibularis longus and fibularis brevis
• C. Tibialis anterior and extensor hallucis longus
• D. Gastrocnemius and tibialis posterior

Answer: (B)

The superficial branch of the common fibular nerve innervates the fibularis longus and fibularis brevis muscles. These two muscles are primarily responsible for the eversion of the foot and assist in plantarflexion as well. The fibularis longus also plays a significant role in maintaining the transverse arch of the foot. The other options involve muscles that are innervated by different nerves. For instance, the soleus and plantaris are innervated by the tibial nerve. Tibialis anterior and extensor hallucis longus are innervated by the deep branch of the common fibular nerve. Likewise, gastrocnemius and tibialis posterior are also supplied by the tibial nerve. Understanding which muscles are innervated by specific nerves is crucial for diagnosing and managing conditions involving the lower limb.

The superficial branch of the common fibular nerve innervates the fibularis longus and fibularis brevis muscles. These two muscles are primarily responsible for the eversion of the foot and assist in plantarflexion as well. The fibularis longus also plays a significant role in maintaining the transverse arch of the foot.

The other options involve muscles that are innervated by different nerves. For instance, the soleus and plantaris are innervated by the tibial nerve. Tibialis anterior and extensor hallucis longus are innervated by the deep branch of the common fibular nerve. Likewise, gastrocnemius and tibialis posterior are also supplied by the tibial nerve. Understanding which muscles are innervated by specific nerves is crucial for diagnosing and managing conditions involving the lower limb.