Intermediate Cerebrum Quiz

Q1. Which three major categories describe cerebral white matter fibers?

• Gray, white, and reticular fibers
• Sensory, motor, and autonomic nerves
• Dorsal, ventral, and lateral roots
• Association, commissural, and projection fibers

Q2. What do association fibers connect?

• The cerebellum to peripheral nerves
• Only the two cerebral hemispheres
• Cortical areas within the same hemisphere
• The spinal cord directly to skeletal muscle

Q3. What do commissural fibers connect?

• Only adjacent gyri in one hemisphere
• The spinal cord and medulla
• The cerebellum and vestibular apparatus
• The two cerebral hemispheres

Q4. What do projection fibers connect?

• Only the right and left hemispheres
• Only cerebellar folia
• Only neighboring cortical gyri
• Cerebral cortex with deeper neural structures

Q5. What is the corona radiata?

• A meningeal venous sinus
• A layer of the cerebral cortex
• Fan-shaped projection fibers between cortex and internal capsule
• A commissure between occipital lobes

Q6. What is the internal capsule?

• A dural fold
• A compact concentration of cerebral projection fibers
• A ventricular recess
• A cortical sulcus

Q7. Which ventricular cavities lie within the cerebral hemispheres?

• Lateral ventricles
• Fourth ventricle only
• Central canal
• Cerebral aqueduct

Q8. Which deep gray matter structures are closely associated with the cerebrum and participate in motor and related circuits?

• Cranial nerve nuclei
• Cerebellar nuclei only
• Dorsal column nuclei
• Basal nuclei

Q9. Which arteries provide the principal arterial supply to the cerebral hemispheres?

• Middle meningeal, occipital, and maxillary arteries
• Anterior spinal, PICA, and AICA only
• Anterior, middle, and posterior cerebral arteries
• Basilar, facial, and lingual arteries

Q10. What is meant by cortical somatotopy?

• Random distribution of cranial nerves in cortex
• Arrangement of cerebral arteries around the brainstem
• Separation of gray matter from white matter
• Orderly cortical representation of different body regions