The Cardiovascular System of a Newborn Must Be Adjusted After

question 98

Multiple Choice

The cardiovascular system of a newborn must be adjusted after the infant takes its first breath.Which of the following is also true?

• A) The ductus arteriosus constricts and is converted to the ligamentum arteriosum.
• B) The urinary system is activated at birth.
• C) The foramen ovale between the atria of the fetal heart closes at the moment of birth.
• D) The ductus venosus is disconnected at the severing of the umbilical cord and all visceral blood goes into the vena cava.

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Definitions:

Expected Frequency

In statistics, the predicted count of occurrences in each category of a variable, assuming the null hypothesis is true.

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Employment in law enforcement, fulfilling roles such as the prevention of crime, enforcement of laws, and protection of citizens.

Expected Frequency

The anticipated count of observations in a category of a contingency table under the assumption that the null hypothesis is true.

Expected Frequency

The anticipated count of occurrences in a category or group based on probabilities.