Block 1: CNS Overview Flashcards
What is the function of frontal lobe, in general?
Executive area; responsible for initiating motor/behavioral responses to information collected
What is the function of the precentral gyrus and anterior paracentral lobule?
Primary motor cortex – controls fine, highly skilled “voluntary” movements
What is the function of the prefrontal cortex: superior, middle, and inferior gyri?
Attention, motivation, planning, abstraction or problem solving, planned (cognition) behavior, subjective judgment, social skills, emotional behavior/personality,
“working memory” or short-term memory (intermediate memory)
What is the function of the superior frontal gyrus?
Premotor area (motor programming or indirect motor movement control); supplementary motor cortex
What is the function of the supplementary motor area?
Motor movement, initiation/planning, cortical micturition control center
What is the function of the middle frontal gyrus?
Frontal eye fields (voluntary eye movements); part of premotor cortex
What is the function of the inferior frontal gyrus?
Three portions: orbital, triangular, and opercular
Critical for motor aspects of speech
What is the function and location of Broca’s area?
Fxn: Formulation of speech
Lxn: Left inferior frontal gyrus
What is the function of the right inferior frontal gyrus?
Language expression (prosody of speech)
What is the function of the postcentral gyrus and the posterior paracentral lobule?
Primary somatosensory cortex
What is the function of the superior parietal lobule and the precuneus?
Somatosensory association cortex
What is the function of the inferior parietal lobule?
Multimodal association cortex (integration)
What is the function of the posterior parietal lobule on the left hemisphere?
Analytical skills
What is the function of the posterior parietal lobule on the right hemisphere?
Visuospatial orientation
What is the general function of the parietal/occipital lobe?
“Where” lobe; shape, form, texture, color, moving or not moving – connects prefrontal cortex and temporal/occipital cortex to tell events that are occurring
What is the function of the cuneus gyrus?
Visual input from lower visual fields
What is the function of the lingual gyrus?
Visual input from upper visual fields
What is the function of the lateral occipital gyri?
Involuntary cortical eye fields (scanning movements)
What is the general function of the temporal/occipital lobe?
“What” lobe; connects to prefrontal cortex, parietal/occipital cortex, orbitofrontal cortex, hippocampus (memory) and amygdala (emotion) to tell what is occurring
What is the function of the transverse temporal gyri and what is another name for this section of cerebrum?
Fxn: Primary auditory cortex (hearing)
AKA: Heschl’s convolutions
What is the function of the superior temporal gyrus and what is another name for the area located in the posterior superior temporal gyrus?
Fxn: Auditory association; language comprehension (Wernicke’s area)
What is the function of the middle temporal gyrus?
Language and semantic (generic – meaning, basic-concepts) memory
What is the function of the inferior temporal gyrus?
Visual association cortex
What is the function of the parahippocampal formation?
Learning/memory consolidation (long-term memory)