Central Nervous System Quiz

What brain dysfunction results when blood supply to a region (or regions) of the brain is blocked and vital brain tissue dies, as by a blood clot or a ruptured blood vessel? 

• cerebrovascular accident (CVA), or stroke
• Parkinson's disease
• Huntington's disease 
• multiple sclerosis

The brain and spinal cord are protected and cushioned by three connective tissue membranes that are collectively called ________. 

• ventricles
• arachnoid villi
• meninges
• sinuses 

Cerebrospinal fluid is formed from blood by clusters of capillaries in the brain known as ________. A) choroid plexuses B) arachnoid villi C) ventricles D) sinuses

• choroid plexuses 
• arachnoid villi
• ventricles
• sinuses 

In which cerebral lobe is the primary somatic sensory cortex located? 

• parietal 
• frontal
• temporal
• occipital

________ junctions that nearly seamlessly bind capillaries in the brain.

• gap
• intercalated disc
• desmosome
• tight

The large fiber tract that allows communication between the two cerebral hemispheres is called the ________. 

• corpus callosum
• fornix
• pons
• thalamus

What portion of the diencephalon acts as a relay station for sensory impulses traveling upward to the sensory cortex?

• pons
• pituitary gland
• thalamus
• hypothalamus

The hypothalamus regulates the ________. 

• pineal gland
• pituitary gland
• pons
• thalamus

The delicate innermost membrane, or meningeal layer, that clings to the surface of the brain and spinal cord is known as the ________ mater.

• dura 
• arachnoid
• periosteal
• pia

How many pairs of spinal nerves emerge from the spinal cord?

• 12
• 25
• 31
• 18