Neuroanatomy of speech Flashcards

1
Q

what is the model of speech and language

A

sensory (auditory and visual) input into language comprehension, this outputs into motor outputs for speech or writing

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2
Q

what is Wernicke’s area

A

sensory
located in posterior temporal lobe
inputs - sounds of words sent from auditory pathways, visual representation of words from visual pathways

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3
Q

what is the function of Wernicke’s area

A

temporal speech/language comprehension

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4
Q

what is Broca’s area

A

located in dominant inferior frontal gyrus
inputs - temporal and parietal lobes via the arcuate fasciculus
outputs - cranial nerve nuclei in pons, medulla controlling bulbar muscles

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5
Q

what is dysphasia

A

impaired comprehension or formulation of language

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6
Q

what is aphasia

A

complete absence of language comprehension

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7
Q

what is expressive dysphasia

A

broca’s area is affected
effortful and broken speech (telegraphic)
comprehension may be intact

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8
Q

what is receptive dysphasia

A

affects Wernicke’s area
difficulty understanding language
fluent and effortless speech but may lack meaning

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9
Q

what is conduction dysphasia

A

affects arcuate fasciculus
intact comprehension and fluent speech
poor speech repetition

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10
Q

what is dysarthria

A

impairment of speech production due to neurological damage to the motor component of speech
sounds slurring

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11
Q

what is dysphonia

A

impairment of speech production due to changes in the vocal apparatus
sounds hoarse, raspy

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