Name that Nerve
What is the name of the cranial nerve responsible for smell?
Olfactory nerve (CN I)
Is the optic nerve sensory, motor, or both?
Sensory
A patient cannot taste sweet or salty foods. Which nerve may be affected?
Facial nerve (CN VII)
This nerve’s damage can cause hypernasal resonance.
What is CN X (Vagus)?
This artery supplies the lateral frontal, temporal, and parietal lobes, including Broca’s and Wernicke’s areas.
What is the Middle Cerebral Artery (MCA)?
What cranial nerve controls eye movement and pupil constriction?
Oculomotor nerve (CN III)
Is the trigeminal nerve sensory, motor, or both?
Both
A patient has trouble shrugging their shoulders. Which nerve is compromised?
What is Accessory nerve (CN XI) lesion?
Weak lip seal → anterior spillage. Which nerve?
What is CN VII (Facial nerve)?
This artery supplies the medial frontal and parietal lobes, including the leg motor/sensory cortex and prefrontal areas.
What is the Anterior Cerebral Artery (ACA)?
Name the cranial nerve associated with balance and hearing.
Vestibulocochlear nerve (CN VIII)
Is the facial nerve sensory, motor, or both?
Both
Patient presents with hoarse voice, hypernasality, and reduced cough.What is compromised?
CN X (Vagus)
Reduced mastication strength during oral phase. What is the nerve?
What is CN V (trigeminal)?
This artery supplies the occipital lobe and inferior temporal lobe; lesions can cause contralateral visual field cuts and alexia
What is the Posterior Cerebral Artery (PCA)?
Which cranial nerve is known as the "wandering nerve"?
Vagus nerve (CN X)
Is the accessory nerve sensory, motor, or both?
Motor
Patient cannot abduct their right eye (move it laterally). What is compromised?
Answer: What is CN VI (Abducens)?
Delayed swallow reflex, impaired taste posteriorly, reduced gag. What is the nerve?
What is CN IX (glossopharyngeal)?
A patient presents with nonfluent, effortful speech, right-sided face and arm weakness, and possible apraxia of speech. The lesion is most likely in this artery?
What is the left Middle Cerebral Artery (MCA)?
This nerve provides motor innervation to the muscles of facial expression, and carries taste from the anterior 2/3 of the tongue
What is the Facial nerve (CN VII)?
Is the glossopharyngeal nerve sensory, motor, or both?
Both
Patient has loss of taste in the posterior 1/3 of tongue + reduced gag reflex.
What is CN IX (Glossopharyngeal)?
This arterial structure at the base of the brain connects the internal carotid arteries with the vertebral/basilar arteries, providing collateral circulation.
What is the Circle of Willis?
Lesion here may cause visual field deficits, alexia without agraphia, and impairments in reading/writing. Which artery is impacted?
What is the Posterior Cerebral Artery (PCA)?