Which of the Following About the Right Atrium of the Mammalian

question 231

Multiple Choice

Which of the following about the right atrium of the mammalian heart is false?

• A) It contains deoxygenated blood.
• B) It receives blood from the superior vena cava and inferior vena cava.
• C) It contracts at the end of passive filling of the right ventricle.
• D) It receives blood from veins of the heart itself.
• E) Blood leaving it for the right ventricle passes by the bicuspid valve.

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Definitions:

Fetal Period

The stage of human development inside the womb from the end of the embryonic stage (approximately 9 weeks after conception) to birth.

Cross-Sectional

This type of study examines data from a population, or a representative subset, at one specific point in time.

Longitudinal Studies

Research methods that involve repeated observations of the same variables or groups over a long period of time, often used to study development or changes.

Cohort Effects

Variations in the characteristics of an area of study (like attitudes, abilities) due to the study subjects having shared a particular experience during a specific time frame.