The Heart's Skeleton

question 45

Multiple Choice

The heart's skeleton

• A) electrically insulates the ventricles from the atria.
• B) is composed of calcified myocardium.
• C) protects the heart from blunt force trauma.
• D) protects the SA node.

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Definitions:

Marriage

A formally recognized bond between two spouses, establishing contractual rights and obligations between them.

Endogamy

A social norm that requires individuals to marry within a specific social group, class, or ethnicity to maintain cultural homogeneity.

Propinquity

The physical or psychological proximity between people, often leading to friendship or other relationships due to the increased likelihood of interaction.

Homogamy

The tendency to choose romantic partners who are similar to us in terms of class, race, education, religion, and other social group membership.