Automatic Pacemaker Cells Spontaneously Depolarize Because

question 27

Multiple Choice

Automatic pacemaker cells spontaneously depolarize because

• A) leak channels (I_f) allow calcium and sodium ions into the cell.
• B) they lack efficient sodium/potassium pumps.
• C) voltage-sensitive sodium channels open spontaneously.
• D) chloride leaks into the cell during rest.

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Definitions:

North America

A continent entirely within the Northern Hemisphere and almost wholly within the Western Hemisphere; it is bordered by the Arctic Ocean to the north, Atlantic Ocean to the east, Pacific Ocean to the west and south, and South America and the Caribbean Sea to the southeast.

Japan

An island country located in East Asia, known for its rich culture, technological advancements, and as the world's third-largest economy.

Normative Social Influence

The persuasive power of individuals in our circle influencing us to transform in ways that ensure their acceptance and affection.

Public Conformity

The act of changing one's behavior or beliefs to align with those of others in a group, often due to perceived social pressure, even if privately disagreeing with the group norms.