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Yes they do ask about and to have a general outline will help a lot in the exam
Here's a quick tip
Just remember L2-L3 for anterior hip
and shift (with overlap) the numbers single segment for the next joint, so anterior knee will be L3-L4 and anterior ankle will be L4-L5
For the posterior innervation it's same as anterior but with downward shift (without overlap)
So posterior hip is L4-L5, posterior knee L5-S1, posterior ankle S1-S2
Here's a quick tip
Just remember L2-L3 for anterior hip
and shift (with overlap) the numbers single segment for the next joint, so anterior knee will be L3-L4 and anterior ankle will be L4-L5
For the posterior innervation it's same as anterior but with downward shift (without overlap)
So posterior hip is L4-L5, posterior knee L5-S1, posterior ankle S1-S2