Which of the Following Is NOT TRUE

question 12

Multiple Choice

Which of the following is NOT TRUE?

• A)Cardiac cells can contract without having been depolarized.
• B)Cardiac cells must be depolarized before they can contract.
• C)Cardiac contraction occurs as a result of phase 0 of the action potential.
• D)Cardiac contraction requires the presence of calcium ions.

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Definitions:

Height

A measurement of how tall an individual or structure is, often determined in units such as feet, inches, or meters.

Prenatal Diagnosis

The process of testing for diseases or conditions in a fetus or embryo before it is born.

Ultrasound

A medical imaging technique that uses high-frequency sound waves to create images of structures within the body, commonly used in pregnancy.

Cell-free Fetal DNA

Fragments of the fetus's DNA that circulate in the maternal blood, used in non-invasive prenatal testing to assess the risk of certain genetic disorders without risking miscarriage.