Intermediate Parietal Lobe Quiz

Q1. Which Brodmann areas classically form the primary somatosensory cortex?

• Brodmann areas 3, 1, and 2
• Brodmann areas 44 and 45
• Brodmann areas 17, 18, and 19
• Brodmann areas 41 and 42

Q2. How is the primary somatosensory cortex organized?

• Somatotopically by body region
• Randomly without body mapping
• Only by sensory modality and never by body region
• Exclusively by ipsilateral cranial nerves

Q3. Where is the lower limb represented most prominently in primary somatosensory cortex?

• Medial parietal cortex in the posterior paracentral lobule
• Inferior frontal gyrus
• Lateral occipital cortex
• Temporal pole

Q4. Where are the face and upper limb represented prominently in primary somatosensory cortex?

• Medial occipital cortex
• Gyrus rectus
• Cingulate gyrus only
• Lateral postcentral gyrus

Q5. Which parietal region is strongly involved in integrating somatic sensory information for spatial awareness and visually guided action?

• Posterior parietal association cortex
• Medullary pyramids
• Primary olfactory cortex
• Primary auditory cortex

Q6. Which arterial territory supplies much of the medial parietal cortex near the paracentral lobule?

• Middle meningeal artery
• Ophthalmic artery
• Anterior inferior cerebellar artery
• Anterior cerebral artery

Q7. What forms the posterior boundary of the parietal lobe on the medial surface?

• Central sulcus
• Lateral sulcus
• Collateral sulcus
• Parieto-occipital sulcus

Q8. How is the posterior boundary of the parietal lobe conventionally extended on the lateral surface?

• A line from the parieto-occipital sulcus to the preoccipital notch
• The lateral sulcus alone
• The calcarine sulcus alone
• A line from the central sulcus to the temporal pole

Q9. Which parietal gyrus is closely associated with the posterior end of the lateral sulcus and phonological language networks in the dominant hemisphere?

• Supramarginal gyrus
• Precentral gyrus
• Gyrus rectus
• Cuneus

Q10. Which parietal gyrus is located posterior to the supramarginal gyrus and participates in multimodal association functions?

• Parahippocampal gyrus
• Lingual gyrus
• Precentral gyrus
• Angular gyrus