PMHNP (Across the Lifespan) Neuroanatomy Comprehensive CBT Review Q & A 2026 (Complete And Verified Study material) (22pages) LEARNEXAMS

1. A patient presents with a loss of sensation in the anterior compartment of the lower leg and dorsum of the foot. Which nerve root is most likely affected? - A) L2 - B) L3 - C) L4 - D) L5 Answer: D) L5 Rationale: The L5 nerve root innervates the muscles in the anterior compartment of the lower leg and provides sensation to the dorsum of the foot. Damage to this nerve root would result in the presented symptoms. 2. During a mental status examination, a patient is unable to recall three objects after five minutes that were mentioned at the beginning of the session. This deficit is indicative of dysfunction in which area of the brain? - A) Frontal lobe - B) Parietal lobe - C) Temporal lobe - D) Occipital lobe Answer: C) Temporal lobe Rationale: The temporal lobe is heavily involved in memory processes, and impairment in this area can lead to difficulties in recalling information. 3. A 55-year-old male with a history of hypertension and diabetes mellitus suddenly develops difficulty speaking and right-sided weakness. Which cerebral artery is most likely occluded? - A) Anterior cerebral artery - B) Middle cerebral artery - C) Posterior cerebral artery