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Retired NBME 20 Answers

nbme20/Block 4/Question#26 (reveal difficulty score)
A 33-year-old man comes to the physician ...
Rectus femoris ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
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 +14  upvote downvote
submitted by โˆ—sympathetikey(1600)
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Good picture showing the anatomy of the thigh from a T2 MRI perspective.

https://radiologykey.com/wp-content/uploads/2016/01/B9781437707595000073_u007-009-9781437707595.jpg

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jcmed  Was so close to picking vastus intermedius +1
shakakaka  Why sartorius is so lateral.. +

I remember "rectus femoris" as the "rectum/butt-kicking" muscle. It helps to both extend and raise the knee, like you'd do when kicking someone. Not directly relevant to this question, but they can always ask about action too.

+7/- baja_blast(219)

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 +0  upvote downvote
submitted by โˆ—trazobone(97)
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You would think the rectus femoris is in the back bc rectum, and biceps is in the front. But no. Okay then.

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makingstrides  This is how I remember the biceps, hopefully it helps. Biceps flexes (think of biceps of your arm) - flexion of the leg is raising the leg posteriorly; therefore biceps femoris must be posterior. +2
cweatherly  rectus femoris, I remember ERECTus femoris, because genitalia are in the front +


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