Blood Is Returned to the Right Side of the Heart

question 77

Multiple Choice

Blood is returned to the right side of the heart by the:

• A)aorta.
• B)vena cavae.
• C)pulmonary vein.
• D)pulmonary artery.

---

Definitions:

Causally Related

Refers to entities or events connected by a cause-and-effect relationship, where one directly influences or brings about the other.

Randomly Assigned Control Group

A group of subjects in an experiment that is randomly selected to not receive the treatment, allowing for a comparison to evaluate the effect of the treatment.

Observational Studies

Research methods that involve assessing subjects without manipulating the environment or the participants, used to identify and describe natural occurrences.

Statistical Correlation

A measure that indicates the extent to which two or more variables fluctuate together, showing how one variable is linearly related to another.