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What is the primary function of the precentral gyrus
- Primary Motor Cortex:Efferent, contralateral motor output
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What could be a symptom of damage to the precentral gyrus
- Hemiparesis or Hemiplegia:
- Muscles that are weak or paralyzed
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Where is the premotor area?
- Posterior portion of
- Superior and Middle Frontal Gyrus
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What is the function of the superior frontal gyrus?
- Premotor Cortex:Motor planning, sends info to primary motor cortex
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What is the function of the middle frontal gryus?
- Premotor Cortex:Motor planning, sends information to primary motor cortex
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Where is Brocca's Area?
*LEFT* Inferior frontal gyrus
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What is the function of Brocca's area?
- Expressive SpeechProduction of written or spoken language
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What could be a symptom of damage to the premotor cortex?
- Apraxia
- confused signals, difficult or jerky movements
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What could be a symptom of damage to the inferior front gyrus?
- Expressive Aphasialoss of ability to produce language
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Where is the prefrontal cortex?
- Anterior portion of :
- Superior, middle and inferior frontal gyrus
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What is the function of the prefrontal cortex?
- Executive functionsplanning, insight, forsight, personality, emotion
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What is the main function of the Parietal Lobe?
Somatosensory
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Where is the primary somatosensory cortex?
Postcentral Gyrus
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What are some of the functions of the postcentral gyrus?
- afferent, contralater inputs to bodyinitial processing of tactile (touch) and proprioreceptive (sense of position) information
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What would be some syptoms of damang to the postcentral gyrus in the CNS?
Sensory discrimation
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What would be some syptoms of damang to the postcentral gyrus in the PNS?
Sensory loss
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Where is wernicke's area?
- *LEFT* inferior parietal lobe and
- posterior superior temporal gyrus
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What is the function or wernicke's area?
- Receptive language
- comprhension of language
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What could result from damange to wernicke's area?
- Receptive AphasiaDifficulty recieving language
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What is the function of the superior parietal lobe?
- Somatomsensory Association Cortex:spatial and preceptual function, interpreting and refining infro from postcentral gyrus
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What could result from damage to the superior parietal lobe
- Agnosia:inability to recognize objects based on senses
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What is the primary function of the Temporal lobe
Auditory
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Where is the primary auditory cortex?
Superior Temporal gyrus
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What is the function of the parahippocampal gyrus?
- Limbic Functionslearning, memory, emotional
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Where is the primary visual cortex?
- medial occipital lobe
- Lingual gyrus and cuneus
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Where is the visual association cortex?
Lateral occipital gyri and parts of lingual gyrus and cuneus
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What are the functions of the visual association cortex?
depth perception, complex perception,
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What could result form damage to the lingual gyrus?
Blindness or occlusions
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What could result from damange to the lateral occipital gyrus?
Visual agnosias and hallucinations
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Where is the olfactory nerve located?
In the Cerebral Hemisphere (gyrus rectus)
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What is the function of the accesory occulomotor nerve?
Pupil dialation?
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What is the function of the occulomotor nerve?
Medial gaze, upward gaze, eyelid elevation
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What is the function of the trochlear nerve?
downward gaze
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What is the function of the trigeminal nerve?
Sensory to face and head, mastication muscles
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What is the fucntion of the abducens?
Lateral gaze
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What is the function of the glossopharyngeal nerve?
- Motor: Swallowing
- Sensory: mucous membranes of outer ear and pharyns, poster 1/3 of tongue,
- skin of outer ear
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What is the function of the vagus nerve?
- Motor: speech and swallowing
- Sensory: throracic and abdominal
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What is the function of the Spinal Accessory Nerve?
Shoulder elevation and neck rotation
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What is the function of the hypoglossal nerve?
tongue movement, chewing and swallowing
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