Anatomy and Function of Cranial Nerves

Which cranial nerve does not arise from the brainstem?

• Olfactory nerve

• Trochlear nerve

• Abducens nerve

• Hypoglossal nerve

The optic nerve (CN II) exits the skull through which structure?

•  Foramen rotundum

• Superior orbital fissure

• Optic canal

• Jugular foramen
  

Which cranial nerve is responsible for innervating the lateral rectus muscle?

• Oculomotor nerve
  

• Trochlear nerve

• Abducens nerve

• Accessory nerve

The mandibular branch is a part of which cranial nerve?

•  Facial nerve

• Trigeminal nerve

• Glossopharyngeal nerve

• Hypoglossal nerve

Which cranial nerve carries parasympathetic fibers to the heart?

•  Vagus nerve
  

• Glossopharyngeal nerve

• Facial nerve

• Spinal accessory nerve

Which cranial nerve is involved in taste sensation from the anterior two-thirds of the tongue?

• Trigeminal nerve

• Facial nerve

• Glossopharyngeal nerve

• Hypoglossal nerve

The vestibulocochlear nerve (CN VIII) passes through which structure?

• Internal acoustic meatus

• Superior orbital fissure

•  Foramen ovale

•  Foramen magnum

Which cranial nerve emerges from the dorsal aspect of the brainstem?

• Trochlear nerve

•  Oculomotor nerve

• Facial nerve

• Abducens nerve

The gag reflex involves which two cranial nerves?

•  Facial and vagus nerves

• Trigeminal and facial nerves

• Glossopharyngeal and vagus nerves

•  Hypoglossal and accessory nerves

The hypoglossal nerve innervates all of the following muscles except:

• Genioglossus

• Styloglossus

• Hyoglossus

• Palatoglossus