Intermediate Parietal Lobe Quiz

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

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

Q2. How is the primary somatosensory cortex organized?

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

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

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

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

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

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

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

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

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

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

• Lateral sulcus
• Parieto-occipital sulcus
• Central sulcus
• Collateral 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
• A line from the central sulcus to the temporal pole
• The calcarine sulcus alone
• The lateral sulcus alone

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

• Gyrus rectus
• Cuneus
• Supramarginal gyrus
• Precentral gyrus

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

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