The Structure Indicated by the Arrow

question 22

Multiple Choice

The structure indicated by the arrow

• A) is where the rubrospinal tract begins.
• B) is where the corticospinal tract decussates.
• C) is where the spinothalamic tract crosses.
• D) is where third-order neurons of the posterior (dorsal) column tract originate.

---

Definitions:

Elastic Portion

A segment of the demand curve where a change in price leads to a more than proportional change in quantity demanded, indicating high price sensitivity.

Price Inelastic

Describes a situation where the demand for a good or service is relatively unresponsive to changes in price.

Same Direction

In the context of relationships or trends, indicates movement or change that is parallel or congruent between two or more variables or entities.

Price Elastic

A term related to price elasticity, which measures the responsiveness of the quantity demanded of a good or service to a change in its price.