Tetrodotoxin Blocks Voltage- Gated Sodium Channels and Ouabain Blocks Sodium-

question 37

Multiple Choice

Tetrodotoxin blocks voltage- gated sodium channels and ouabain blocks sodium- potassium pumps. If you added both tetrodotoxin and ouabain to a solution containing neural tissue, what responses would you expect?

• A) no effect; the substances counteract each other
• B) slow decrease of resting potential and action potential amplitudes
• C) immediate loss of action potential with gradual loss of resting potential
• D) immediate loss of resting potential

---

Definitions:

Quantity Equation

An equation that relates the quantity of money in an economy to the nominal value of transactions, used in economics to describe the relationship between money supply and price level.

Price Level

A measure of the average prices of goods and services in an economy at a specific time.

Money Supply

The aggregate of financial assets in an economy at a specific moment, which includes cash, coins, and the deposits in checking and savings accounts.

Quantity Equation

An equation that relates the quantity of money in an economy to the level of economic activity, typically framed as MV = PQ.