NBME 22 L-3 to 4 (NBME Answers)

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Retired NBME 22 Answers

nbme22/Block 4/Question#41 (reveal difficulty score)
A 65-year-old woman with a 20-year history of ...
L-3 to 4 🔍 / 📺 / 🌳 / 📖
tags: anatomy

+9 upvote downvote
submitted by ∗sbryant6(205)

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https://www.peacefulmind.com/crystals-dermatomes-and-chakra/

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makinallkindzofgainz upvote for credible source +27

weirdmed51 Define chakra +1

+5 upvote downvote
submitted by seracen(15)

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Classic FA Mnemonic:

S1-S1 Buckle my Shoe (foot) L3-L4 Kick the Door (leg) C5-C6 Pick up Sticks (bicep) C7-C8 Lay them Straight (tricep)

I know it's a reflex mnemonic, but it's served me well in these sorts of questions.

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+3 upvote downvote
submitted by ∗seagull(1933)

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Couple ways to get the answer. 1. sensation of the anterior thigh and medial leg are by branches of the femoral nerve (L3, L4, L5). 2. Since the anterior thigh is affected the platellar reflex is likely affected which is a branch of L4.

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medschul Isn't the femoral nerve innervated by L2-4? +4

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submitted by ∗asharm10(37)

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If knee is mentioned just look for L4 and then rule out all the other options, you are left with just one option just pick it and don't think beyond.

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skonys I'm a simple dude, I think "L3-L4, kick the door" and move on with my miserable life +2

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submitted by ∗skonys(58)

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I feel like they REALLY like this dermatome

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