Pacemaker Cells in the SA Node

question 46

Multiple Choice

Pacemaker cells in the SA node

• A)have a well-defined resting potential.
• B)can spontaneously depolarize.
• C)also contract with the rest of the cells in the heart wall.
• D)are special neurons that convey signals from the brain to the heart.
• E)All of the answers are correct.

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Definitions:

Promissory Note

A financial tool comprising a formal agreement where one entity commits to paying a specific amount of money to another entity, either upon request or at a predetermined date in the future.

Time Extension

An additional period of time given to complete a task or fulfill an obligation that extends beyond the original deadline.

Charge Customer

To bill a customer for goods or services provided, creating an obligation for payment.

Accrued Interest

Interest that has been earned but not yet received or recorded in the accounts.