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DPT 540 - CEREBRAL CORTEX EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE £8.15   Add to cart

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DPT 540 - CEREBRAL CORTEX EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE

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DPT 540 - CEREBRAL CORTEX EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE Gall and phrenology Described pyramidal decussation, cerebral peduncles, and performed great study on cranial nerves and optic tract. Noticed the brain indents in the skull (major gyri and sulci)...

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  • November 16, 2024
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  • 2024/2025
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DPT 540 - CEREBRAL CORTEX EXAM QUESTIONS AND

ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST

UPDATE


Gall and phrenology

Described pyramidal decussation, cerebral peduncles, and performed great study on

cranial nerves and optic tract. Noticed the brain indents in the skull (major gyri and

sulci). Associated mental capacity with cerebral cortex

Broca (history of cerebral cortex)

Identified inferior frontal convolutions and pars triangularis and opercularis (locus of

patient Tan's stroke)

- regions were important for language

Six layers (lamina) of cortex

Layer 1 -> plexiform (acellular) layer

Layer 2 -> outer (external) granular layer

Layer 3 -> Outer (external) pyramidal layer

Layer 4 -> Inner granular layer

Layer 5 -> inner pyramidal layer

Layer 6 -> Multiform layer

Layer 1 (plexiform/acelllular layer)

Layer closest to the pia, contains dendritees and axons from other layers

Layer 2 (outer granular layer)

, Relatively small cells, cortical-cortical connections (back and forth within cortex)

- gives rise to rather short association pathways that link gyri together

Layer 3 (outer pyramidal layer)

Large cells with large apical dendrite, cortical-cortical connections

- commissural connections are mediated by axons that arise from layer 3,

interhemispheric (corpus callosum, anterior commissure)

- give rise to cortical association axons or axons that connect various part of crotex

together

Layer 4 (inner granular layer)

Relatively small cells, very few pyramidal cells seen here

- receives inputs from thalamus

Layer 5 (inner pyramidal layer)

Largest cells in cerebral cortex, sends outputs to subcortical structures (other than

thalamus)

- gives rise to cortical association axons or axons that connect various part of cortex

together

Layer 6 (multiform layer)

Many different cell shapes and sizes, primarily gives rise to corticothalamic projections

- sends outputs to thalamus

Other connections of cerebral cortex axons include...

Corticofugal axons to subcortical brain structures and spinal cord. Corticopetal

connections from other subcortical nuclei

When does a fetus develop neurons?

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