ANAT 380 (CLINICAL REVELANT HUMAN ANATOMY) EXAM
with Questions and Answers/Plus a Rationale Updated 2026
A+/Instant Download PDF
EXAM COVERAGE
1. Musculoskeletal System and Biomechanics
2. Neuroanatomy and Clinical Pathologies
3. Cardiovascular and Respiratory Anatomy
4. Gastrointestinal and Hepatobiliary Anatomy
5. Genitourinary and Reproductive Anatomy
6. Clinical Anatomy of the Head and Neck
1. A 65-year-old patient presents with a diminished gag reflex and loss of taste on the posterior
third of the tongue. An MRI reveals a mass at the jugular foramen. Which nerve is most likely
compressed, and what is the associated clinical finding?
A. Glossopharyngeal nerve; atrophy of the genioglossus muscle.
B. Vagus nerve; deviation of the uvula toward the lesion.
C. Glossopharyngeal nerve; absent afferent limb of the gag reflex.
D. Hypoglossal nerve; loss of sensation to the soft palate.
CORRECT ANSWER : C
Rationale: The glossopharyngeal nerve (CN IX) provides the afferent limb of the gag reflex and
taste to the posterior third of the tongue, and it exits through the jugular foramen. Option A is
incorrect because the genioglossus is innervated by the hypoglossal nerve. Option B is incorrect
as the uvula deviates away from a vagus nerve lesion, not toward it. Option D is incorrect as the
hypoglossal nerve primarily provides motor innervation to the tongue.
,2. During a thyroidectomy, a surgeon inadvertently injures the nerve traveling in close proximity to
the superior thyroid artery. What is the expected deficit?
A. Permanent hoarseness due to vocal cord paralysis.
B. Weakness in pitch production due to paralysis of the cricothyroid muscle.
C. Loss of sensation to the subglottic mucosa.
D. Deviation of the tongue upon protrusion.
CORRECT ANSWER : B
3. Rationale: The external branch of the superior laryngeal nerve runs with the superior thyroid
artery and innervates the cricothyroid muscle, which adjusts vocal pitch. Option A is incorrect
because the recurrent laryngeal nerve affects vocal cord abduction/adduction. Option C is
incorrect as sensory innervation of the larynx below the vocal folds is provided by the recurrent
laryngeal nerve. Option D is incorrect as this relates to the hypoglossal nerve. A patient presents
with foot drop following a fibular neck fracture. Which muscle is most likely affected, and what
is its primary action?
A. Tibialis posterior; plantarflexion.
B. Tibialis anterior; dorsiflexion.
C. Gastrocnemius; plantarflexion.
D. Peroneus longus; eversion.
CORRECT ANSWER : B
Rationale: The common fibular nerve wraps around the fibular neck and innervates the anterior
compartment of the leg, including the tibialis anterior, which dorsiflexes the foot. Options A, C,
and D are incorrect as these muscles are in different compartments or innervated by the tibial
nerve, which is not affected by this injury.
4. A patient exhibits loss of sensation over the lateral aspect of the forearm. Which nerve is most
likely involved?
A. Radial nerve.
B. Musculocutaneous nerve.
C. Axillary nerve.
D. Median nerve.
, CORRECT ANSWER : B
Rationale: The musculocutaneous nerve continues as the lateral antebrachial cutaneous nerve,
providing sensation to the lateral forearm. Option A supplies the posterior forearm, C supplies
the shoulder (deltoid), and D supplies the lateral palm and digits.
5. Which structure is located immediately posterior to the trachea in the superior mediastinum?
A. Aortic arch.
B. Esophagus.
C. Thoracic duct.
D. Left recurrent laryngeal nerve.
CORRECT ANSWER : B
Rationale: The esophagus lies directly posterior to the trachea throughout its thoracic course.
Option A is anterior/superior, C is posterior but lateral, and D is in the tracheoesophageal
groove, not directly behind the trachea.
6. Damage to the internal capsule’s posterior limb is most likely to cause which of the following?
A. Pure sensory deficit.
B. Contralateral hemiparesis.
C. Ipsilateral facial droop.
D. Bilateral visual field loss.
CORRECT ANSWER : B
Rationale: The posterior limb of the internal capsule contains the corticospinal tracts; lesions
here result in contralateral motor deficits (hemiparesis). Option A is incorrect as it affects motor
fibers significantly, C is incorrect as the capsule affects contralateral sides, and D is incorrect as
it affects contralateral optic radiation, causing hemianopia.
7. A patient with a stab wound to the neck demonstrates Horner syndrome. Which finding is
consistent with this?
A. Proptosis.
B. Miosis.
, C. Tachycardia.
D. Hyperhidrosis of the face.
CORRECT ANSWER : B
Rationale: Horner syndrome is characterized by ptosis, miosis (constricted pupil), and
anhidrosis (not hyperhidrosis) due to sympathetic chain disruption. Options A, C, and D are
inconsistent with the classic triad of Horner syndrome.
8. Which dermatome is associated with the umbilical region?
A. T4.
B. T8.
C. T10.
D. T12.
CORRECT ANSWER : C
Rationale: The T10 dermatome level corresponds to the level of the umbilicus. Options A, B, and
D represent levels above or below this landmark.
9. A patient with shoulder pain cannot initiate abduction. Which muscle is likely damaged?
A. Deltoid.
B. Supraspinatus.
C. Infraspinatus.
D. Subscapularis.
CORRECT ANSWER : B
Rationale: The supraspinatus is responsible for the initiation of abduction (first 15 degrees) of
the humerus. The deltoid takes over after that, and the others are involved in rotation.
10. Which vessel is most commonly the source of an epidural hematoma?
A. Superior sagittal sinus.
B. Middle meningeal artery.
with Questions and Answers/Plus a Rationale Updated 2026
A+/Instant Download PDF
EXAM COVERAGE
1. Musculoskeletal System and Biomechanics
2. Neuroanatomy and Clinical Pathologies
3. Cardiovascular and Respiratory Anatomy
4. Gastrointestinal and Hepatobiliary Anatomy
5. Genitourinary and Reproductive Anatomy
6. Clinical Anatomy of the Head and Neck
1. A 65-year-old patient presents with a diminished gag reflex and loss of taste on the posterior
third of the tongue. An MRI reveals a mass at the jugular foramen. Which nerve is most likely
compressed, and what is the associated clinical finding?
A. Glossopharyngeal nerve; atrophy of the genioglossus muscle.
B. Vagus nerve; deviation of the uvula toward the lesion.
C. Glossopharyngeal nerve; absent afferent limb of the gag reflex.
D. Hypoglossal nerve; loss of sensation to the soft palate.
CORRECT ANSWER : C
Rationale: The glossopharyngeal nerve (CN IX) provides the afferent limb of the gag reflex and
taste to the posterior third of the tongue, and it exits through the jugular foramen. Option A is
incorrect because the genioglossus is innervated by the hypoglossal nerve. Option B is incorrect
as the uvula deviates away from a vagus nerve lesion, not toward it. Option D is incorrect as the
hypoglossal nerve primarily provides motor innervation to the tongue.
,2. During a thyroidectomy, a surgeon inadvertently injures the nerve traveling in close proximity to
the superior thyroid artery. What is the expected deficit?
A. Permanent hoarseness due to vocal cord paralysis.
B. Weakness in pitch production due to paralysis of the cricothyroid muscle.
C. Loss of sensation to the subglottic mucosa.
D. Deviation of the tongue upon protrusion.
CORRECT ANSWER : B
3. Rationale: The external branch of the superior laryngeal nerve runs with the superior thyroid
artery and innervates the cricothyroid muscle, which adjusts vocal pitch. Option A is incorrect
because the recurrent laryngeal nerve affects vocal cord abduction/adduction. Option C is
incorrect as sensory innervation of the larynx below the vocal folds is provided by the recurrent
laryngeal nerve. Option D is incorrect as this relates to the hypoglossal nerve. A patient presents
with foot drop following a fibular neck fracture. Which muscle is most likely affected, and what
is its primary action?
A. Tibialis posterior; plantarflexion.
B. Tibialis anterior; dorsiflexion.
C. Gastrocnemius; plantarflexion.
D. Peroneus longus; eversion.
CORRECT ANSWER : B
Rationale: The common fibular nerve wraps around the fibular neck and innervates the anterior
compartment of the leg, including the tibialis anterior, which dorsiflexes the foot. Options A, C,
and D are incorrect as these muscles are in different compartments or innervated by the tibial
nerve, which is not affected by this injury.
4. A patient exhibits loss of sensation over the lateral aspect of the forearm. Which nerve is most
likely involved?
A. Radial nerve.
B. Musculocutaneous nerve.
C. Axillary nerve.
D. Median nerve.
, CORRECT ANSWER : B
Rationale: The musculocutaneous nerve continues as the lateral antebrachial cutaneous nerve,
providing sensation to the lateral forearm. Option A supplies the posterior forearm, C supplies
the shoulder (deltoid), and D supplies the lateral palm and digits.
5. Which structure is located immediately posterior to the trachea in the superior mediastinum?
A. Aortic arch.
B. Esophagus.
C. Thoracic duct.
D. Left recurrent laryngeal nerve.
CORRECT ANSWER : B
Rationale: The esophagus lies directly posterior to the trachea throughout its thoracic course.
Option A is anterior/superior, C is posterior but lateral, and D is in the tracheoesophageal
groove, not directly behind the trachea.
6. Damage to the internal capsule’s posterior limb is most likely to cause which of the following?
A. Pure sensory deficit.
B. Contralateral hemiparesis.
C. Ipsilateral facial droop.
D. Bilateral visual field loss.
CORRECT ANSWER : B
Rationale: The posterior limb of the internal capsule contains the corticospinal tracts; lesions
here result in contralateral motor deficits (hemiparesis). Option A is incorrect as it affects motor
fibers significantly, C is incorrect as the capsule affects contralateral sides, and D is incorrect as
it affects contralateral optic radiation, causing hemianopia.
7. A patient with a stab wound to the neck demonstrates Horner syndrome. Which finding is
consistent with this?
A. Proptosis.
B. Miosis.
, C. Tachycardia.
D. Hyperhidrosis of the face.
CORRECT ANSWER : B
Rationale: Horner syndrome is characterized by ptosis, miosis (constricted pupil), and
anhidrosis (not hyperhidrosis) due to sympathetic chain disruption. Options A, C, and D are
inconsistent with the classic triad of Horner syndrome.
8. Which dermatome is associated with the umbilical region?
A. T4.
B. T8.
C. T10.
D. T12.
CORRECT ANSWER : C
Rationale: The T10 dermatome level corresponds to the level of the umbilicus. Options A, B, and
D represent levels above or below this landmark.
9. A patient with shoulder pain cannot initiate abduction. Which muscle is likely damaged?
A. Deltoid.
B. Supraspinatus.
C. Infraspinatus.
D. Subscapularis.
CORRECT ANSWER : B
Rationale: The supraspinatus is responsible for the initiation of abduction (first 15 degrees) of
the humerus. The deltoid takes over after that, and the others are involved in rotation.
10. Which vessel is most commonly the source of an epidural hematoma?
A. Superior sagittal sinus.
B. Middle meningeal artery.
