Gross Anatomy Unit 2

A tumor compressing the superior orbital fissure would MOST LIKELY affect which of the following actions?

• Tongue movement

• Eyelid elevation and eye movement

• Hearing and balance

• Jaw opening

The greater petrosal nerve contains all of the following fiber types EXCEPT:

• Parasympathetic preganglionic fibers

• Taste fibers

• Somatic motor fibers

• Visceral afferent fibers

A 34-year-old female presents to the clinic for an elective facial procedure targeting the upper lip and cheek region. To provide effective local anesthesia to this area, through which of the following foramina would the physician MOST LIKELY administer the anesthetic?

• Infraorbital foramen

• Mental foramen

• Supraorbital foramen

• Foramen ovale

An occlusion of the foramen ovale would MOST LIKELY affect which of the following divisions of the trigeminal nerve?

• Ophthalmic division (V1)

• Maxillary division (V2)

• Mandibular division (V3)

• All of the above

The deep cervical artery is a branch of which major arterial trunk?

• Subclavian artery

• Costocervical trunk

• Thyrocervical trunk

• Vertebral artery

Occlusion of which branch of the external carotid artery would MOST LIKELY result in reduced blood flow to the parotid gland?

• Superior thyroid artery

• Lingual artery

• Facial artery

• Posterior auricular artery

A 47-year-old patient presents with impaired eye movement and sensory loss over the forehead and midface. Imaging reveals an aneurysm compressing the internal carotid artery, along with cranial nerves responsible for ocular motion and facial sensation. In which of the following major spaces is the aneurysm MOST LIKELY located?

• Infratemporal fossa

• Subarachnoid space

• Cavernous sinus

• Posterior cranial fossa

Select the correct order of venous blood flow through the dural venous sinuses.

• Superior sagittal sinus → Straight sinus→ Transverse sinus → Sigmoid sinus → Internal jugular vein

• Inferior sagittal sinus → Cavernous sinus → Transverse sinus → Internal jugular vein

• Transverse sinus → Superior sagittal sinus → Sigmoid sinus → Internal jugular vein

• Sigmoid sinus → Superior sagittal sinus → Transverse sinus → Internal jugular vein

The Circle of Willis is primarily supplied by which two major arterial branches?

• Internal carotid artery and vertebral artery

• External carotid artery and basilar artery

• Internal carotid artery and basilar artery

• Common carotid artery and vertebral artery

Which of the following is TRUE regarding the lingual nerve?

• It carries somatic motor fibers to the muscles of the tongue.

• It carries parasympathetic fibers from the glossopharyngeal nerve.

• It carries special sensory (taste) fibers from the facial nerve.

• It carries sensory fibers to the posterior one-third of the tongue.