Trivial Tibial
The Tibial Nerve dives deep to these 2 muscles in the leg
Gastrocnemius and Soleus
The Tibial Nerve will past posterior to this landmark through this land landmark as it enters the foot.
Posterior to the medial malleolus.
Through the Tarsal Tunnel
The Common Fibular Nerve splits into these 2 at the level of the fibular head. Both will dive deep to these muscles.
Superficial and Deep Fibular Nerves.
Deep to the Fibularis muscles
The Deep Fibular nerve courses into this compartment of the leg.
Anterior compartment
DTRs: L2, L3, L4 = ?
L5, S1 = ?
S1, S2 = ?
Knee Jerk
Medial Hamstring reflex
Ankle Jerk
Superficial to the Posterior Tibialis muscle.
Traveling alongside the Posterior Tibial Artery and Vein
The Tibial nerve will give off these branches to give sensation to the medial heel.
Calcaneal branches
The superficial fibular nerve travels alongside these, and will innervate this compartment of the leg consisting of these 2 muscles.
Alongside the Fibular Artery and Vein.
Innervates the Lateral compartment of the leg.
Consisting of the Fibularis Longus and Brevis.
The Deep Fibular nerve innervates 4 muscles, name at least 2.
Tibialis anterior, extensor hallucis longus, extensor digitorum brevis, and fibularis tertius.
Myotomes: L2, L3 = ?
L3, L4 = ?
L4, L5 = ?
Hip Flexion
Knee Extension
Ankle Dorsiflexion or Inversion
(I think of the classic Rockette Dance)
The tibial nerve innervates this compartment of the leg
The posterior compartment
The main branch of the tibial nerve will split into these 2 nerves.
The medial and lateral plantar nerves.
The Superficial Fibular Nerve will pierce this muscle
Fibularis Longus
The Deep Fibular Nerve travels alongside this artery and vein, and can be found sitting on this muscle in the anterior compartment.
Alongside the Tibial artery and vein.
Sitting on the tibialis anterior.
Myotomes P2: L5, S1 = ?
S1, S2 = ?
Hip Extension, Knee Flexion, Ankle Eversion
Ankle Plantarflexion
The tibial nerve innervates 7 muscles. Name at least 3 of them.
Gastrocnemius, Soleus, Plantaris, Popliteus, Flexor Hallucis Longus, Flexor Digitorum longus, Posterior Tibialis
These nerves supply motor and sensory innervation to the medial and lateral plantar foot.
Medial and Lateral Plantar Nerves
After emerging from Fibularis longus, the Superficial Fibular nerve will provide sensation to this part of the leg.
Antero-lateral leg
True or False: The Deep Fibular Nerve supplies sensation to the web space between digits 1 and 2.
True
Dermatomes: L1 = ?
L2 = ?
L3 = ?
L4 = ?
Superior Lateral Thigh along Iliac Crest
Anterior Mid Thigh
Medial Aspect of Knee
Medial Leg near Medial Malleolus
What is the Sustentaculum Tali?
A little "shelf" where the posterior tibial nerve, vein and artery travel under.
The Gastrocnemius and the Soleus
The Superficial Fibular Nerve provides sensation to dorsum of the foot, except for these specific locations.
The web space between digits 1 and 2, and the lateral foot.
The Superficial and Deep Fibular nerves dually innervate these 2 muscles in the dorsal foot.
Extensor Digitorum Brevis and Extensor Hallucis Brevis
Dermatomes P2: L5 = ?
S1 = ?
S2 = ?
S3, S4, S5 = ?
Lateral Leg near Fibular Head + Web space between Digits 1 + 2
Inferior to Lateral Malleolus
Medial Aspect of Popliteal Fossa
Perineal Region (shape of a bullseye)