The SA Node Initiates the Heartbeat by Automatically Sending Out

question 16

True/False

The SA node initiates the heartbeat by automatically sending out impulses causing the atria to contract.

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Definitions:

Concordance Rate

The statistical measure used in genetics and psychology to indicate how often related individuals (especially twins) show the same characteristic or disorder.

Anxiety Disorders

A group of mental health disorders characterized by excessive fear, anxiety, and related behavioral disturbances.

Identical Twins

Twins who originate from the same fertilized egg, sharing identical genetic material.

Dimensional Approach

A method of categorizing characteristics on a continuum rather than as distinct categories, often used in psychology to measure the degree of mental health issues.