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Flashcards in Module 3 Deck (341)
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331

- located in the inferior frontal lobe of the dominant hemisphere
- processes the information received from Wernicke's area into a detailed and coordinated pattern for vocalization

Broca’s Area (Brodmann Area 44)

332

- located in posterior superior temporal gyrus of the dominant hemisphere
- concerned with comprehension of auditory and visual information

Wernicke’s Area (Brodmann Area 22)

333

- bundle of the nerve fibers that connect Wernicke’s area to Broca’s area

Arcuate Fasciculus

334

- appears to process information from words that are read in such a way that they can be converted into the audito-ry forms of the words in Wernicke's ar-ea

Angular Gyrus (Brodmann Area 39)

335

• abnormalities of language functions that are not due to defects of vision or hearing or to motor pa-ralysis
• caused by lesions in the categorical/dominant hemisphere
• most common cause is Cerebrovascular Disease

Aphasia

336

Types of Aphasia

- Broca's Aphasia
- Wernicke's Aphasia
- Conduction Aphasia
- Anomic Aphasia
- Global Aphasia

337

- lesion in Broca’s area
- also called non-fluent aphasia or expressive aphasia
- speech is slow and words are hard to come by
- patients with severe damage to this area are limited to two or three words

Broca's Aphasia

338

- lesion in Wernicke’s area
- also called fluent aphasia or receptive aphasia
- speech is normal
- patients talk excessively (jargon, neologisms)
- fails to comprehend the meaning

Wernicke's Aphasia

339

- lesion in ARCUATE FASCICULUS
- patients can speak relatively well and have good auditory comprehension but cannot put parts of words together or conjure up words

Conduction Aphasia

340

- lesion in ANGULAR GYRUS (written words)
- no difficulty with speech or the understanding of auditory information
- trouble understanding written language or pictures
- visual information is not processed and transmitted to Wernicke's area

Anomic Aphasia

341

- due to generalized brain destruction
- more than one form of aphasia is often present
- speech is scant as well as nonfluent

Global Aphasia