2
NU 673 USMLE Step I Comprehensive review Exam with
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accurate detailed answers || ||
What gland is found in the muscular triangle of the neck? - ✔✔Thyroid gland
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Is an afferent or efferent pupillary defect described as B/L pupillary constriction when light is
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shined in the unaffected eye and B/L paradoxical dilation when light is shined in the affected eye?
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- ✔✔Afferent pupillary defect (CN II lesion); in an efferent pupillary defect (CN III), B/L
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constrict when light is shined in the unaffected eye and consentual pupil constriction occurs when
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light is shined in the affected eye.
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What is the name of the spinal cord passing within the subarachnoid space and forming the spinal
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nerves that exit the lumbar and sacral foramina? - ✔✔Cauda equina
|| || || || || || || || || ||
Name the laryngeal muscle described by the following: • Pulls the arytenoids cartilages closer to
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the thyroid, relaxing the vocal ligaments and thereby decreasing the pitch - ✔✔Thyroarytenoid
|| || || || || || || || || || || || ||
muscles
Name the laryngeal muscle described by the following: • Tenses the vocal ligaments, increasing
|| || || || || || || || || || || || || ||
the distance between the cartilages, thereby increasing the pitch - ✔✔Cricothyroid muscles
|| || || || || || || || || || ||
Name the laryngeal muscle described by the following: • Adducts the vocal ligaments, closes the
|| || || || || || || || || || || || || || ||
air passageway during swallowing, and allows phonation - ✔✔Lateral cricoarytenoid muscles
|| || || || || || || || || ||
Name the laryngeal muscle described by the following: • Only muscle to abduct the vocal cords -
|| || || || || || || || || || || || || || || || ||
✔✔Posterior cricoarytenoid muscles || ||
Where does the parotid (Stensen's) duct enter the oral cavity? - ✔✔Opposite the second upper
|| || || || || || || || || || || || || || ||
molar tooth ||
,2
From what aortic arch are the following structures derived? • Common and internal carotid
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arteries - ✔✔Third aortic arch MS CARD is my mnemonic for the aortic arch derivatives
|| || || || || || || || || || || || || ||
From what aortic arch are the following structures derived? • Degenerates - ✔✔Fifth MS CARD
|| || || || || || || || || || || || || || ||
is my mnemonic for the aortic arch derivatives
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From what aortic arch are the following structures derived? • Stapes artery - ✔✔Second MS
|| || || || || || || || || || || || || || ||
CARD is my mnemonic for the aortic arch derivatives
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From what aortic arch are the following structures derived? • Maxillary artery - ✔✔First MS
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CARD is my mnemonic for the aortic arch derivatives
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From what aortic arch are the following structures derived? • Arch of the aorta and right
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subclavian artery - ✔✔Fourth MS CARD is my mnemonic for the aortic arch derivatives
|| || || || || || || || || || || || ||
From what aortic arch are the following structures derived? • Right and left pulmonary arteries
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and the ductus arteriosus - ✔✔Sixth MS CARD is my mnemonic for the aortic arch derivatives
|| || || || || || || || || || || || || || ||
What abdominal muscle contributes to the anterior layer of the rectus sheath, forms the inguinal
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ligament, and in men gives rise to the external spermatic fascia of the spermatic cord? -
|| || || || || || || || || || || || || || || ||
✔✔External abdominal oblique || ||
Name the compartment of the lower extremity and the nerve based on its movements. • Adduct
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the thigh and flex the hip - ✔✔Medial compartment of the thigh, obturator nerve
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Name the compartment of the lower extremity and the nerve based on its movements. • Plantar
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flex the foot, flex the toes, and invert the foot - ✔✔Posterior compartment of the leg, tibial nerve
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Name the compartment of the lower extremity and the nerve based on its movements. • Dorsiflex
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the foot, extend the toes, and invert the foot - ✔✔Anterior compartment of the leg, deep peroneal
|| || || || || || || || || || || || || || || || ||
nerve
,2
Name the compartment of the lower extremity and the nerve based on its movements. • Flex the
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hip and extend the knee - ✔✔Anterior compartment of the thigh, femoral nerve
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Name the compartment of the lower extremity and the nerve based on its movements. • Extend
|| || || || || || || || || || || || || || || ||
the hip and flex the knee - ✔✔Posterior compartment of the thigh, tibial nerve
|| || || || || || || || || || || || ||
Name the compartment of the lower extremity and the nerve based on its movements. • Plantar
|| || || || || || || || || || || || || || || ||
flex the foot and evert the foot - ✔✔Lateral compartment of the leg, superficial peroneal nerve
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What are the five branches of the posterior cord of the brachial plexus? - ✔✔STARS 1. Upper
|| || || || || || || || || || || || || || || || ||
Subscapularis 2. Thoracodorsal 3. Axillary 4. Radial 5. Lower Subscapularis || || || || || || || || ||
Name the correct artery. • The right recurrent laryngeal nerve passes around it. - ✔✔Right
|| || || || || || || || || || || || || || ||
brachiocephalic artery ||
Name the correct artery. • The left recurrent laryngeal nerve passes around it. - ✔✔Arch of the
|| || || || || || || || || || || || || || || || ||
aorta
The inferior mesenteric artery drains into it. - ✔✔The splenic vein
|| || || || || || || || || ||
Are the quadrate and caudate lobes of the liver functionally part of the left or right lobe? -
|| || || || || || || || || || || || || || || || || ||
✔✔Functionally they are part of the left lobe of the liver because they receive their blood supply || || || || || || || || || || || || || || || || ||
from the left hepatic artery. Anatomically they are considered part of the right lobe of the liver.
|| || || || || || || || || || || || || || || ||
What bones make up the acetabulum? - ✔✔Pubis, ilium, and ischium
|| || || || || || || || || ||
What is the anatomic positioning of the right and left gastric nerve plexus of the esophagus as
|| || || || || || || || || || || || || || || || ||
they pass through the diaphragm? - ✔✔LARP: Left goes Anterior and Right goes Posterior
|| || || || || || || || || || || || || ||
(because of the rotation of the gut; remember your embryology!)
|| || || || || || || || ||
, 2
What vessel is lacerated in an epidural hematoma? - ✔✔Middle meningeal artery
|| || || || || || || || || || ||
True or false? Below the arcuate line, all the aponeurotic fibers run anterior to the rectus
|| || || || || || || || || || || || || || || ||
abdominis. - ✔✔TRUE || ||
What ocular muscle • Adducts the eyeball and is involved in horizontal conjugate gaze? -
|| || || || || || || || || || || || || || ||
✔✔Medial rectus (CN III) (LR6 SO4)3 || || || || ||
What ocular muscle • Elevates and adducts the eyeball? - ✔✔Superior rectus (CN III) (LR6
|| || || || || || || || || || || || || || ||
SO4)3
What ocular muscle • Depresses and abducts the eyeball? - ✔✔Superior Oblique (CN IV) (LR6
|| || || || || || || || || || || || || || ||
SO4)3
What ocular muscle • Elevates and abducts the eyeball? - ✔✔Inferior Oblique (CN III) (LR6
|| || || || || || || || || || || || || || ||
SO4)3
What ocular muscle • Abducts the eyeball and is involved in horizontal conjugate gaze? -
|| || || || || || || || || || || || || || ||
✔✔Lateral rectus (CN VI) (LR6 SO4)3 || || || || ||
What ocular muscle • Depresses and adducts the eyeball? - ✔✔Inferior rectus (CN III) (LR6
|| || || || || || || || || || || || || || ||
SO4)3
Which muscles of the eye are under parasympathetic control? - ✔✔Constrictor pupillae and
|| || || || || || || || || || || || ||
ciliary muscles||
Which direction does the uvula deviate in a left vagus nerve lesion? - ✔✔A left CN X lesion
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results in the uvula deviating to the right. (Uvula points away from the affected side.)
|| || || || || || || || || || || || || ||
NU 673 USMLE Step I Comprehensive review Exam with
|| || || || || || || || ||
accurate detailed answers || ||
What gland is found in the muscular triangle of the neck? - ✔✔Thyroid gland
|| || || || || || || || || || || || ||
Is an afferent or efferent pupillary defect described as B/L pupillary constriction when light is
|| || || || || || || || || || || || || || ||
shined in the unaffected eye and B/L paradoxical dilation when light is shined in the affected eye?
|| || || || || || || || || || || || || || || || ||
- ✔✔Afferent pupillary defect (CN II lesion); in an efferent pupillary defect (CN III), B/L
|| || || || || || || || || || || || || || ||
constrict when light is shined in the unaffected eye and consentual pupil constriction occurs when
|| || || || || || || || || || || || || || ||
light is shined in the affected eye.
|| || || || || ||
What is the name of the spinal cord passing within the subarachnoid space and forming the spinal
|| || || || || || || || || || || || || || || || ||
nerves that exit the lumbar and sacral foramina? - ✔✔Cauda equina
|| || || || || || || || || ||
Name the laryngeal muscle described by the following: • Pulls the arytenoids cartilages closer to
|| || || || || || || || || || || || || || ||
the thyroid, relaxing the vocal ligaments and thereby decreasing the pitch - ✔✔Thyroarytenoid
|| || || || || || || || || || || || ||
muscles
Name the laryngeal muscle described by the following: • Tenses the vocal ligaments, increasing
|| || || || || || || || || || || || || ||
the distance between the cartilages, thereby increasing the pitch - ✔✔Cricothyroid muscles
|| || || || || || || || || || ||
Name the laryngeal muscle described by the following: • Adducts the vocal ligaments, closes the
|| || || || || || || || || || || || || || ||
air passageway during swallowing, and allows phonation - ✔✔Lateral cricoarytenoid muscles
|| || || || || || || || || ||
Name the laryngeal muscle described by the following: • Only muscle to abduct the vocal cords -
|| || || || || || || || || || || || || || || || ||
✔✔Posterior cricoarytenoid muscles || ||
Where does the parotid (Stensen's) duct enter the oral cavity? - ✔✔Opposite the second upper
|| || || || || || || || || || || || || || ||
molar tooth ||
,2
From what aortic arch are the following structures derived? • Common and internal carotid
|| || || || || || || || || || || || || ||
arteries - ✔✔Third aortic arch MS CARD is my mnemonic for the aortic arch derivatives
|| || || || || || || || || || || || || ||
From what aortic arch are the following structures derived? • Degenerates - ✔✔Fifth MS CARD
|| || || || || || || || || || || || || || ||
is my mnemonic for the aortic arch derivatives
|| || || || || || ||
From what aortic arch are the following structures derived? • Stapes artery - ✔✔Second MS
|| || || || || || || || || || || || || || ||
CARD is my mnemonic for the aortic arch derivatives
|| || || || || || || ||
From what aortic arch are the following structures derived? • Maxillary artery - ✔✔First MS
|| || || || || || || || || || || || || || ||
CARD is my mnemonic for the aortic arch derivatives
|| || || || || || || ||
From what aortic arch are the following structures derived? • Arch of the aorta and right
|| || || || || || || || || || || || || || || ||
subclavian artery - ✔✔Fourth MS CARD is my mnemonic for the aortic arch derivatives
|| || || || || || || || || || || || ||
From what aortic arch are the following structures derived? • Right and left pulmonary arteries
|| || || || || || || || || || || || || || ||
and the ductus arteriosus - ✔✔Sixth MS CARD is my mnemonic for the aortic arch derivatives
|| || || || || || || || || || || || || || ||
What abdominal muscle contributes to the anterior layer of the rectus sheath, forms the inguinal
|| || || || || || || || || || || || || || ||
ligament, and in men gives rise to the external spermatic fascia of the spermatic cord? -
|| || || || || || || || || || || || || || || ||
✔✔External abdominal oblique || ||
Name the compartment of the lower extremity and the nerve based on its movements. • Adduct
|| || || || || || || || || || || || || || || ||
the thigh and flex the hip - ✔✔Medial compartment of the thigh, obturator nerve
|| || || || || || || || || || || || ||
Name the compartment of the lower extremity and the nerve based on its movements. • Plantar
|| || || || || || || || || || || || || || || ||
flex the foot, flex the toes, and invert the foot - ✔✔Posterior compartment of the leg, tibial nerve
|| || || || || || || || || || || || || || || || ||
Name the compartment of the lower extremity and the nerve based on its movements. • Dorsiflex
|| || || || || || || || || || || || || || || ||
the foot, extend the toes, and invert the foot - ✔✔Anterior compartment of the leg, deep peroneal
|| || || || || || || || || || || || || || || || ||
nerve
,2
Name the compartment of the lower extremity and the nerve based on its movements. • Flex the
|| || || || || || || || || || || || || || || || ||
hip and extend the knee - ✔✔Anterior compartment of the thigh, femoral nerve
|| || || || || || || || || || || ||
Name the compartment of the lower extremity and the nerve based on its movements. • Extend
|| || || || || || || || || || || || || || || ||
the hip and flex the knee - ✔✔Posterior compartment of the thigh, tibial nerve
|| || || || || || || || || || || || ||
Name the compartment of the lower extremity and the nerve based on its movements. • Plantar
|| || || || || || || || || || || || || || || ||
flex the foot and evert the foot - ✔✔Lateral compartment of the leg, superficial peroneal nerve
|| || || || || || || || || || || || || || ||
What are the five branches of the posterior cord of the brachial plexus? - ✔✔STARS 1. Upper
|| || || || || || || || || || || || || || || || ||
Subscapularis 2. Thoracodorsal 3. Axillary 4. Radial 5. Lower Subscapularis || || || || || || || || ||
Name the correct artery. • The right recurrent laryngeal nerve passes around it. - ✔✔Right
|| || || || || || || || || || || || || || ||
brachiocephalic artery ||
Name the correct artery. • The left recurrent laryngeal nerve passes around it. - ✔✔Arch of the
|| || || || || || || || || || || || || || || || ||
aorta
The inferior mesenteric artery drains into it. - ✔✔The splenic vein
|| || || || || || || || || ||
Are the quadrate and caudate lobes of the liver functionally part of the left or right lobe? -
|| || || || || || || || || || || || || || || || || ||
✔✔Functionally they are part of the left lobe of the liver because they receive their blood supply || || || || || || || || || || || || || || || || ||
from the left hepatic artery. Anatomically they are considered part of the right lobe of the liver.
|| || || || || || || || || || || || || || || ||
What bones make up the acetabulum? - ✔✔Pubis, ilium, and ischium
|| || || || || || || || || ||
What is the anatomic positioning of the right and left gastric nerve plexus of the esophagus as
|| || || || || || || || || || || || || || || || ||
they pass through the diaphragm? - ✔✔LARP: Left goes Anterior and Right goes Posterior
|| || || || || || || || || || || || || ||
(because of the rotation of the gut; remember your embryology!)
|| || || || || || || || ||
, 2
What vessel is lacerated in an epidural hematoma? - ✔✔Middle meningeal artery
|| || || || || || || || || || ||
True or false? Below the arcuate line, all the aponeurotic fibers run anterior to the rectus
|| || || || || || || || || || || || || || || ||
abdominis. - ✔✔TRUE || ||
What ocular muscle • Adducts the eyeball and is involved in horizontal conjugate gaze? -
|| || || || || || || || || || || || || || ||
✔✔Medial rectus (CN III) (LR6 SO4)3 || || || || ||
What ocular muscle • Elevates and adducts the eyeball? - ✔✔Superior rectus (CN III) (LR6
|| || || || || || || || || || || || || || ||
SO4)3
What ocular muscle • Depresses and abducts the eyeball? - ✔✔Superior Oblique (CN IV) (LR6
|| || || || || || || || || || || || || || ||
SO4)3
What ocular muscle • Elevates and abducts the eyeball? - ✔✔Inferior Oblique (CN III) (LR6
|| || || || || || || || || || || || || || ||
SO4)3
What ocular muscle • Abducts the eyeball and is involved in horizontal conjugate gaze? -
|| || || || || || || || || || || || || || ||
✔✔Lateral rectus (CN VI) (LR6 SO4)3 || || || || ||
What ocular muscle • Depresses and adducts the eyeball? - ✔✔Inferior rectus (CN III) (LR6
|| || || || || || || || || || || || || || ||
SO4)3
Which muscles of the eye are under parasympathetic control? - ✔✔Constrictor pupillae and
|| || || || || || || || || || || || ||
ciliary muscles||
Which direction does the uvula deviate in a left vagus nerve lesion? - ✔✔A left CN X lesion
|| || || || || || || || || || || || || || || || || ||
results in the uvula deviating to the right. (Uvula points away from the affected side.)
|| || || || || || || || || || || || || ||
