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NBME Anatomy Shelf Questions and Correct Answer
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NBME Anatomy Shelf Questions and Correct Answer
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Elscores 8/19/2024 12:50:12 AMNBME Anatomy Shelf Questions and
Correct Answer
Radial Nerve splits into ____________ & _____________
~: Deep radial (motor) and superficial (sensory) at the the level of the radial bone head
A fracture of the midshaft of the humerus leads to
~: *Radial Nerve Injury
*Loss of extensors in the forearm, hand, metacarpals, and phalanges --> *Wrist drop*
Radial nerve innervates
~: brachioradialis and extensor carpi radialis longus before it splits
Deep radial nerve innervates
~: supinator and the extensor carpi radialis brevis
After it pierces the supinator...
~: Deep radial n. becomes posterior interosseus n.
A *supracondylar fracture* of the humerus and/or a *compression in the carpal tunnel*
injures the ...
~: the median nerve
A *supracondylar fracture* of the humerus
, Elscores 8/19/2024 12:50:12 AM
~: *Fracture at the distal end.
*Common in kids when they fall with hand outstretched.
Damaged median nerve ...
~: loss of pronation, opposition of the thumb, and flexion of the lateral two IP joints and
impairment of the medial two IP joints
testicular torsion
~: In the absence of trauma, lack of cremasteric reflex along with 10/10 groin pain in an
adolescent male. An emergency
The nerve(s) of Cremaster reflex
~: Genitofemoral nerve (L1-L2)
*The "femoral" portion of this nerve supplies skin sensation to the upper anterior thigh.
*"Genito" portion of the nerve travels with the spermatic cord to innervate the cremaster
muscle and the anterior scrotal skin.
ilioinguinal nerve (L1)
~: * travels adjacent to the spermatic cord (is NOT within the cord)
Males: Inn. skin sensation over the root of the penis and the upper part of the scrotum.
In females, it is responsible for sensation of the mons pubis and labia majora.
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