Sural nerve
The sural nerve is formed by the union of the ______—a branch of the tibial nerve—and the ______ nerve arising from the ______
Medial Sural cutaneous, peroneal communicating, lateral sural cutaneous
Branches into which two dorsal foot nerves?
Terminal branches of these cover which interspaces?
Intermediate Dorsal Cutaneous, Medial dorsal cutaneous ( parallel to EHL)
IDCN- 3rd and 4th
MDC- 2nd, medial hallux
2.5 cm above the ankle, the nerve lies between which tendons
EHL, EDL
The two terminal branches
Medial and lateral plantar nerves
Saphenous motor innervation includes:
Nothing
Sural Nerve gives off a ___ branch at the heel and terminates as the
Lateral calcaneal branch
Lateral dorsal cutaneous
The superficial peroneal nerve is located in the __ compartment 73% of the time
lateral
Purpose of the lateral terminal branch of deep peroneal nerve
Innervate EHB, EDB
Medial calcaneal nerve originates directly from the tibial nerve in roughly 90% of cases either as a single nerve or two separate nerves. Where does the remaining 10% originate from
Lateral plantar nerve
The Saphenous nerve is the terminal branch of the
Femoral nerve
Sural Originates from __ - __ (Spine)
L4-S1
The superficial peroneal nerve divides where in relation to the lateral malleolus tip (must be within 2 cm)
6.4 cm above
In majority of the cases, the Deep peroneal nerve is ___ to the Anterior tibial artery
lateral
The bifurcation of the tibial nerve occurs where in relation to the tip of the medial malleolus (Must be within 2cm)
1.5cm superior
The remaining branch of the saphenous nerve anastomoses with which nerve in the foot
medial dorsal cutaneous from superficial peroneal
The Sural Nerve courses ___ mm from the tip of the fibula distally. The most common location of the sural nerve can be found hugging the lateral aspect of the achilles __ cm above the tip of the lateral malleolus (within 2 cm)
10-15mm (13 most often)
10 cm
The superficial peroneal nerve pierces the deep fascia (crural fascia) ____ cm above the tip of the lateral malleolus (Must be within 2 cm)
12.5
The deep peroneal nerve divides where in relation to the ankle joint (must be within 2 cm)
1.3 cm above
The most common site of the tibial nerve is ___ cm above the tip of the medial malleolus, in line with the medial border of the Achilles tendon (must be within 2cm)
7.5cm
Saphenous originates from __-___ (spine)
L3-L4
Lateral cutaneous nerve is absent in 16% of patients. In these instances, how does sural originate
medial cutaneous nerve reproduces the normal course of the sural nerve
The largest accessory branch of the superficial peroneal nerve is the
lateral malleolar branch
Additional innervation of the lateral branch extends to innervate what joints
the tarsometatarsal, the metatarso-phalangeal, and interphalangeal joints of the lesser toes.
Nerve coursing through the superficial layer plantarly which could be cut during an EPF
medial calcaneal nerve
Average diameter of the saphenous nerve is ___ mm (must be exact)
3mm