The Central Nervous System

Gray matter in the spinal cord contains:

• Axons
• Neuronal cell bodies
• Ascending and descending fibers
• Myelin

A cross-section of the spinal cord is uniform in size across all segments of the spine:

• True
• False

The following tract carries movement-related information from the brain to the spinal cord:

• The cortico-spinal tract
• The spino-cerebellar tract
• The DCML
• Lateral spino-thalamic tract

The largest region of the brain is

• The cerebellum

• The mid-brain

• The basal ganglia

• The cerebral hemisphere

The structure that holds the two brain hemispheres together:

• The cerebellum
• The thalamus
• Corpus callosum
• The occipital lobe