Posted by lae2 on August 14, 2013 at 19:08:07:
In Reply to: Re: Questions for the Leg Part II posted by Dazed and Confused part 2 on August 14, 2013 at 11:33:04:
: : Short Answer
: 12. The tibia is limited in superior displacement by the femoral condyles. The fibula is limited in superior displacement by attachments to the tibia. Does this observation reflect the direction of fiber orientation in the interosseous membrane? Beginning with attachment at the tibia, fiber orientation of the interosseous membrane starts (blank) and courses (blank) in a (blank) direction toward the fibula. (The last two blanks are interchangeable).
: superiorly (ascends from tibia to fibula) and courses inferiorly in an oblique direction toward the fibula
From the tibia - inferior to superior and lateral. Yes, resists proximal displacement of fibula.
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: 21. The tibial nerve is lesioned at the superior free edge of the soleus. Can the ankle still be flexed (plantar-flexed)? Explain?
: thinking no because all plantar flexors are innverated by the tibial nerve
It is not enough to know the nerve. You need to know the lesion location as well. In this case, the motor branches to the gastrocnemius (popliteal fossa) are spared. This concept will come up again and again. Thank you for going out on a limb (have you lost your sense of humor yet?)