]> 2026-07-31T07:51:58+00:00 WBR0578 0 en Superior temporal gyrus Wernicke's aphasia is a speech dysfunction characterized by impaired comprehension, intact speech fluency, and impaired repetition. It results from damage to the superior temporal gyrus. Wernicke's aphasia is also known as sensory or receptive aphasia. Inferior frontal gyrus Broca's aphasia is a speech dysfunction characterized by intact comprehension, impaired speech fluency, and impaired repetition. It results from damage to the inferior frontal gyrus. Broca's aphasia is also known as motor or expressive aphasia. Superior temporal and frontal gyri Global aphasia is a speech dysfunction characterized by impaired comprehension, impaired speech fluency, and impaired repetition. It results from damage to a larger area of the brain that involves the superior temporal and inferior frontal gyri. Arcuate fasiculus Area between the supplementary motor area and the frontal perisylvian speech zone Transcortical motor aphasia is a speech dysfunction characterized by impaired comprehension, impaired speech fluency, and intact repetition. It results from damage to the area between the supplementary motor area and the frontal perisylvian speech zone. Pathophysiology A 71-year-old right-handed man with a past medical history significant for coronary artery disease and hypertension presents to the emergency department for acute-onset right arm weakness and speech difficulty. The patient is not able to speak in full sentences and answers by saying: "Ummm...Ummm..Not move..Ummm arrr...arm". Whenever the physician asks him a question, the patient tries to answer by using hand gestures. Which of the following brain regions is most likely responsible for the patient's speech dysfunction? B Neurology 2020-10-28T01:01:47Z 2459150.5429051 WBR0578