In the Heart, the Interatrial and Interventricular Septa

question 100

Multiple Choice

In the heart, the interatrial and interventricular septa

• A)prevent blood exchange between the atria and ventricles.
• B)allow blood to flow in only one direction between the atria and ventricles.
• C)act as the pacemaker of the heart.
• D)are the gatekeepers for the pulmonary and systemic circulatory systems.

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Definitions:

Prions

Infectious agents composed of protein in a misfolded form, causing neurodegenerative diseases.

Virions

Complete virus particles that consist of an RNA or DNA core with a protein coat sometimes with external envelopes and that are the extracellular infective form of a virus.

DNA Polymerase

An enzyme that catalyzes the synthesis of new DNA strands from nucleotide precursors, essential for DNA replication and repair processes.

Retroviruses

A class of viruses that use reverse transcriptase to convert their RNA genome into DNA, integrating it into the host cell’s DNA for replication.