What Is the Principle Defect in Parkinson Disease

question 20

Multiple Choice

What is the principle defect in Parkinson disease?

• A) There is a loss of neurons in the reticular activating system that secrete acetylcholine.
• B) There is a demyelination of alpha motor neurons important for posture and balance.
• C) Neurons of the substantia nigra degenerate and there is reduced delivery of dopamine to the basal nuclei.
• D) Autoimmune destruction occurs in neurons in the motor regions of the cerebral cortex.
• E) Damage to neurons of the cerebellum reduces the coordination of muscle movements.

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Definitions:

Imported Goods

Products or services brought into one country from another, contributing to a country's supply of goods, affecting domestic markets, trade balances, and consumer choices.

Protective Tariffs

Taxes imposed on imported goods to protect domestic industries from foreign competition by making the imported goods more expensive.

Domestic Producers

Manufacturers or providers of goods and services within a country's own borders, as opposed to foreign producers.

Equilibrium World Price

The price at which the quantity of a good demanded globally equals the quantity supplied across the world, without any trade barriers.