NBME ANATOMY SHELF 2025-2026 EXAM WITH VERIFIED
QUESTIONS AND CORRECT ANSWERS GRADED A+ Radial
Ne
Radial Nerve splits into ____________ & _____________ - Correct answer-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 - Correct answer-*Radial Nerve Injury
*Loss of extensors in the forearm, hand, metacarpals, and phalanges --> *Wrist drop*
Radial nerve innervates - Correct answer-brachioradialis and extensor carpi radialis longus before it
splits
Deep radial nerve innervates - Correct answer-supinator and the extensor carpi radialis brevis
After it pierces the supinator... - Correct answer-Deep radial n. becomes posterior interosseus n.
A *supracondylar fracture* of the humerus and/or a *compression in the carpal tunnel* injures the ... -
Correct answer-the median nerve
A *supracondylar fracture* of the humerus - Correct answer-*Fracture at the distal end.
*Common in kids when they fall with hand outstretched.
,Damaged median nerve ... - Correct answer-loss of pronation, opposition of the thumb, and flexion of
the lateral two IP joints and impairment of the medial two IP joints
What are effects of *blowout fractures*? - Correct answer-to *orbital floor*
damage: *inf. rectus m.*, *infraorbital n.* and *artery*
Muscles of the orbit? - Correct answer-LR6SO4 -> everything else is 3
including *levator palpebrae superioris*
What are limbs of *corneal blink reflex*? - Correct answer-afferent: *nasocilliary n.*
efferent: *facial n.* (to *orbicularis oculi*)
What are causes/effects of *Horner Syndrome*? - Correct answer--pancoast tumor, penetrating neck
injury (injuries to *sympathetic trunk* or the *stellate ganglion*)
-PAM VE
ptosis, miosis, anhydrosis, vasodilation, enophthalmos
What can result from *perforation of tympanic membrane*? - Correct answer-lesion to *chorda
tympani* (CN 7)
loss of *taste* (ant. 2/3)
loss of submandibular/lingual secretion
What is origin/function of *thyroid gland*? - Correct answer-chromaffin cells from *ultimobranchial
body* (Pharyngeal Pouch 4)
*thyroglossal canal*
secrete *TH* and *calcitonin*
increase metabolism; ↓ [Ca++]
What is origin/function of *parathyroid gland*? - Correct answer-Pharyngeal Pouch 3/4
secrete *PTH*; ↑ [Ca++}
,What causes a *median cervical cyst*? - Correct answer-painless, moves during swallowing
remnant of *thyroglossal canal*
What causes *brachial/pharyngeal cysts*? - Correct answer-non receded *pharyngeal clefts 2 -> 4*
What makes up the *cavity of the larynx*? - Correct answer-*vestibular* - "false" - folds
*vocal* folds
What are important muscles of the *larynx*? - Correct answer-*post. cricoaretynoid* - only abductor
(opens vocal folds for breathing
*cricothyroid* - tenses vocal cords (phonation)
What are *branches* of *superior laryngeal n.*? - Correct answer-ext. laryngeal - *cricothyroid m.*
-runs w/*sup. thyroid a.*
int. laryngeal - sensory *above* vocal cords; floor of piriform recess
-runs w/*sup. laryngeal a.*
What is function of *recurrent laryngeal n.*? - Correct answer-sensory: larynx *below* vocal cords
motor: all *laryngeal muscles* except *cricothyroid m.*
What are components of *carotid sheath*? - Correct answer-1. common/internal carotid a.
2. internal jugular v.
3. vagus n.
What are contents of *post. triangle of neck*? - Correct answer-1. scalene muscles
2. EJV, subclavian v.
3. CN 11
4. superficial cervical nodes
, What are the *arteries* that are involved in *Kiesselbach's plexus*? - Correct answer-the *S*atellite
*L*ocation is *A*lways *E*ffective on my *GPS*
Superior Labial
Anterior Ethmoidal
Greater Palatine
Sphenopalatine
What is the *order of flow* in ventricular CSF circulation? - Correct answer-*L*ady *Monro* has *3
Aqueducts* that go to the *4 Luscious* and *Magical Subarachnoid* places
Lateral ventricle -> Foramina of Monro -> Third Ventricle -> Cerebral Aqueduct (of Sylvius) -> 4th
ventricle -> Foramina of Luschka and Foramen of Magendie -> Subarachnoid -> Arachnoid granulations
testicular torsion - Correct answer-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 - Correct answer-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) - Correct answer-* travels adjacent to the spermatic cord (is NOT within the cord)
QUESTIONS AND CORRECT ANSWERS GRADED A+ Radial
Ne
Radial Nerve splits into ____________ & _____________ - Correct answer-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 - Correct answer-*Radial Nerve Injury
*Loss of extensors in the forearm, hand, metacarpals, and phalanges --> *Wrist drop*
Radial nerve innervates - Correct answer-brachioradialis and extensor carpi radialis longus before it
splits
Deep radial nerve innervates - Correct answer-supinator and the extensor carpi radialis brevis
After it pierces the supinator... - Correct answer-Deep radial n. becomes posterior interosseus n.
A *supracondylar fracture* of the humerus and/or a *compression in the carpal tunnel* injures the ... -
Correct answer-the median nerve
A *supracondylar fracture* of the humerus - Correct answer-*Fracture at the distal end.
*Common in kids when they fall with hand outstretched.
,Damaged median nerve ... - Correct answer-loss of pronation, opposition of the thumb, and flexion of
the lateral two IP joints and impairment of the medial two IP joints
What are effects of *blowout fractures*? - Correct answer-to *orbital floor*
damage: *inf. rectus m.*, *infraorbital n.* and *artery*
Muscles of the orbit? - Correct answer-LR6SO4 -> everything else is 3
including *levator palpebrae superioris*
What are limbs of *corneal blink reflex*? - Correct answer-afferent: *nasocilliary n.*
efferent: *facial n.* (to *orbicularis oculi*)
What are causes/effects of *Horner Syndrome*? - Correct answer--pancoast tumor, penetrating neck
injury (injuries to *sympathetic trunk* or the *stellate ganglion*)
-PAM VE
ptosis, miosis, anhydrosis, vasodilation, enophthalmos
What can result from *perforation of tympanic membrane*? - Correct answer-lesion to *chorda
tympani* (CN 7)
loss of *taste* (ant. 2/3)
loss of submandibular/lingual secretion
What is origin/function of *thyroid gland*? - Correct answer-chromaffin cells from *ultimobranchial
body* (Pharyngeal Pouch 4)
*thyroglossal canal*
secrete *TH* and *calcitonin*
increase metabolism; ↓ [Ca++]
What is origin/function of *parathyroid gland*? - Correct answer-Pharyngeal Pouch 3/4
secrete *PTH*; ↑ [Ca++}
,What causes a *median cervical cyst*? - Correct answer-painless, moves during swallowing
remnant of *thyroglossal canal*
What causes *brachial/pharyngeal cysts*? - Correct answer-non receded *pharyngeal clefts 2 -> 4*
What makes up the *cavity of the larynx*? - Correct answer-*vestibular* - "false" - folds
*vocal* folds
What are important muscles of the *larynx*? - Correct answer-*post. cricoaretynoid* - only abductor
(opens vocal folds for breathing
*cricothyroid* - tenses vocal cords (phonation)
What are *branches* of *superior laryngeal n.*? - Correct answer-ext. laryngeal - *cricothyroid m.*
-runs w/*sup. thyroid a.*
int. laryngeal - sensory *above* vocal cords; floor of piriform recess
-runs w/*sup. laryngeal a.*
What is function of *recurrent laryngeal n.*? - Correct answer-sensory: larynx *below* vocal cords
motor: all *laryngeal muscles* except *cricothyroid m.*
What are components of *carotid sheath*? - Correct answer-1. common/internal carotid a.
2. internal jugular v.
3. vagus n.
What are contents of *post. triangle of neck*? - Correct answer-1. scalene muscles
2. EJV, subclavian v.
3. CN 11
4. superficial cervical nodes
, What are the *arteries* that are involved in *Kiesselbach's plexus*? - Correct answer-the *S*atellite
*L*ocation is *A*lways *E*ffective on my *GPS*
Superior Labial
Anterior Ethmoidal
Greater Palatine
Sphenopalatine
What is the *order of flow* in ventricular CSF circulation? - Correct answer-*L*ady *Monro* has *3
Aqueducts* that go to the *4 Luscious* and *Magical Subarachnoid* places
Lateral ventricle -> Foramina of Monro -> Third Ventricle -> Cerebral Aqueduct (of Sylvius) -> 4th
ventricle -> Foramina of Luschka and Foramen of Magendie -> Subarachnoid -> Arachnoid granulations
testicular torsion - Correct answer-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 - Correct answer-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) - Correct answer-* travels adjacent to the spermatic cord (is NOT within the cord)
