β-Blockers Inhibit an Adrenergic Receptor Found on Many Cell Types

question 31

Multiple Choice

β-blockers inhibit an adrenergic receptor found on many cell types in the body,including heart cells.Patients who have arrhythmias (irregular heartbeats) most likely benefit from what downstream action of these drugs?

• A)increased frequency of IP3 release
• B)activation of PLC
• C)increased adenylyl cyclase activity
• D)decreasing cAMP-mediated effects on contraction rate

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Definitions:

1972 Summit

A significant series of meetings during the Cold War, particularly referring to the historic Summit Series ice hockey competition between Canada and the Soviet Union.

China

A vast East Asian country with a rich history, diverse culture, and the world's largest population.

Moscow

The capital city of Russia, known for its historical architecture, cultural institutions, and as a significant political and economic center.

Anwar Sadat

The third President of Egypt, who initiated peace with Israel leading to the Camp David Accords, and was assassinated in 1981.