What Is the Function of the Valves in Veins

question 7

Multiple Choice

What is the function of the valves in veins?

• A) They act as pumps to move blood forward.
• B) Collection area for plaque.
• C) Prevention of forward blood flow.
• D) Prevention of backward blood flow.

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Definitions:

Normal Distribution

A probability distribution that is symmetric about the mean, depicting that data near the mean are more frequent in occurrence than data far from the mean.

Binomial Distribution

A probability distribution that models the number of successes in a fixed number of independent Bernoulli trials with the same probability of success.

F-distribution

A probability distribution that arises in the analysis of variance and is used to calculate whether two observed variances are significantly different.

Matched Pairs

A study design where subjects are paired based on certain criteria, ensuring that each pair is similar except for the treatment given.