18 Questions
What is the main muscular deficit associated with a common fibular nerve injury?
Inability to dorsiflex
Which gait abnormality is typically seen as a compensatory mechanism for 'foot drop'?
Waddling gait
If left untreated, compartment syndrome may lead to:
Necrosis of affected tissues
Which nerve can be compressed deep to the inferior extensor retinaculum, leading to 'ski boot syndrome'?
Deep fibular nerve
Injury to which nerve would result in sensory deficits specific to the dorsum of the foot?
Superficial fibular nerve
How would you differentiate between a common fibular nerve injury and a deep fibular nerve injury based on motor deficits?
Common fibular - inability to plantarflex; Deep fibular - inability to dorsiflex
Which nerve innervates the muscles of the posterior compartment of the leg, responsible for plantarflexion and supination/inversion?
Tibial nerve
Which nerve innervates the muscles of the lateral compartment of the leg, responsible for eversion and pronation?
Superficial fibular nerve
Which nerve innervates the muscles of the anterior compartment of the leg, responsible for dorsiflexion?
Deep fibular nerve
What is the primary function of the tibial nerve during the gait cycle?
Plantarflexion during stance phase
Which nerve is formed by the combination of the medial sural cutaneous nerve (from the tibial nerve) and the communicating branch of the lateral sural cutaneous nerve (from the common fibular nerve)?
Sural nerve
During the swing phase of the gait cycle, which nerve is primarily responsible for the dorsiflexion of the foot?
Deep fibular nerve
Which nerve innervates the gastrocnemius and soleus muscles?
Tibial nerve
Which nerve is vulnerable to injury in the clinical case described?
Deep fibular nerve
During the stance phase of the gait cycle, which muscles are primarily active?
Dorsiflexors and plantarflexors
Which nerve innervates the tibialis anterior muscle?
Deep fibular nerve
During the swing phase of the gait cycle, which muscles are primarily active?
Plantarflexors only
Which nerve provides sensory innervation to the lateral aspect of the dorsum of the foot?
Superficial fibular nerve
This quiz covers the branches of nerves and arteries in the lower limb anatomy, including the tibial nerve, fibular nerve, and various cutaneous nerves. Test your knowledge on the anatomy of the lower limb branches.
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