A Nervous System Can Alter Activities in Its Target Cells

question 9

Multiple Choice

A nervous system can alter activities in its target cells in muscles and glands because

• A)they are electrically coupled by gap junctions.
• B)the target cells have receptor proteins for the signals released by the nervous system.
• C)the nervous system releases signals into the blood to control the target cells.
• D)the target cells that become disconnected from the nervous system rapidly die.
• E)the target cells each have an internal neural network connected to the nervous system.

---

Definitions:

Demand

The quantity of a good or service that consumers are willing and able to purchase at various price points, at a given time.

Excise Tax

A per-unit tax on a specific good.

Supply Curve

A graph that represents the relationship between the price of a good and the quantity of the good that suppliers are willing to sell.

Perfectly Inelastic

Describes a situation where the quantity demanded or supplied of a good does not change as its price changes.