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Comparitive Neuroanatomy > Organization of Cerebral Cortex > Flashcards

Flashcards in Organization of Cerebral Cortex Deck (10):

Give the generally information processing structure of a cortical column:

Layer IV receives thalamic input. Layer IV transmits information to layers II and III which associate with other cortical regions. Layers V and VI project to subcortical structures.


Layer IV neurons of which Brodmann's area(s) would receive input from the medial geniculate nucleus?

41 and 42 (Auditory Cortex)


Granular neurons in which Brodmann's area(s) would receive afferents from lateral geniculate nucleus?

17 (Visual Cortex (V1))


Granular neurons in brodmann's area 4 receive afferents from which thalamic nuclei?

Ventroanterior and Ventrolateral Nuclei


Brodmann's areas 1,2,3 receive afferents from which thalamic nucleus?

Ventral Posterior Nucleus


Efferents of mediodorsal nucleus of thalamus to cortex correspond to which sensory modality?



Corticostriatal projections originate in which cortical layer? Where do they terminate?

Layers V and VI, basal ganglia


Define the three types of output pathways of cortex:

Projection (corticofugal) - to subcortical structures
Association - to other cortical structures
Commisural - connect hemispheres


Name the structures of the corpus callosum:

Splenium, body, genu, rostrum, anterior commisure


Describe the association pathways of cortex:

Superior Longitudinal fasciculus: Connects Prefrontal cortex to motor, posterior parietal, and visual cortices
Unicinate Fasciculus: connects temporal lobe with orbitofrontal cortex
Arcuate Fasciculus: connects Broca's and Wernicke's areas
Inferior Longitudinal Fasciculus: connects Middle temporal with occipital lobes
Cingulum: follows the cingulate gyrus