Block 3: Independent Learning Flashcards
What are the roots for L4-S2
deep fibular nerve
What is the patellar reflex testing?
L3/L4
What does the L4 dermatome supply
supplies the medial aspect of the leg and the foot
What are the branches of the tibial nerve?
medial and lateral plantar nerves
Ankle Jerk Reflex
tapping the achilles tendon, motived by tibial nerve
Superfiical Fibular Nerve F(x)
supplies everter muscles of the lateral compartment of the foot & sensory to the dorsum of the foot
Lateral Femoral Circumflex Anastamoses
runs down the lateral aspect of the thigh & joins the genicular anastamoses
What lymph drains the gluteal region?
superficial inguinal nodes
Vertical Nodes
receives lymph from the lower extremities
Popliteal nodes drain into
deep inguinal nodes
Talocrural joint
aka
joint type
permits
aka ankle joint
hinge type synovial joint b/w tibia and talus
permits plantarflexion and dorsiflexion
Calcaenofibular ligament
attachment
f(x)
attachment: from tip of the lateral malleolus to the lateral surface of the calcaneus
f(x): stabilize the foot, prevent inversion injury
Forced inversion of the foot tears what ligament
calcaneofibular ligament
Describe the course of the common fibular nerve
it winds around the neck of the fibula before dividing into superficial and deep branches
Lateral Plantar Nerve
Innervates
adductor hallucis, plantar interossei (all intrinsic muscles in the sole of the foot except for those supplied by the medial plantar nerve)
Medial Plantar Nerve
major sensory nerve of the foot
innervates skin on the anterior 2/3 of the sole, and 4 instrinsic muscles
Achilles tendon inserts at
the calcaeus
What ligaments are most likely to be torn during an inversion sprain?
anteriortalofibular & calcaneofibular ligaments
Plantar calcaneonavicular ligament
aka
f(x)
spring ligament
supports the head of the talus and maintains the arch of the foot
Sprain of the deltoid ligament is caused by
eversion of the ankle joint
What causes flat foot?
flattening of the medial longitudinal arch
Potts Fracture
medial malleolus is pulled forcefully by the strong deltoid ligament as the talus moves laterally, causing a fracture of the medial malleolus
