Medical Physiology Quiz
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Questions and Answers

Which statement accurately describes the interaction between maternal and fetal blood?

  • Fetal blood returns to the mother through the umbilical vein.
  • Fetal blood may reach the mother under normal conditions, but not vice versa.
  • Maternal and fetal blood mix freely within the placenta.
  • Maternal and fetal blood remain separate, without mixing. (correct)

    • Which of the following does not assist in inspiration?

  • Pectoralis minor muscle
  • Internal abdominal oblique muscle (correct)
  • External intercostal muscles
  • Diaphragm

    • What defines the lateral boundary of the superior mediastinum?

  • The superior thoracic aperture.
  • The mediastinal parietal pleura. (correct)
  • The pericardium.
  • The mediastinal visceral pleura.

    • Which of these vessels does not directly enter the right atrium of the heart?

    <p>Pulmonary veins (C)</p> Signup and view all the answers

    Where is the optimal location to listen for the sounds of the pulmonary valve?

    <p>2nd left intercostal space close to the sternum (D)</p> Signup and view all the answers

    Which statement is not true regarding the lungs?

    <p>The pulmonary arteries provide functional blood flow to the lungs (D)</p> Signup and view all the answers

    If the circumflex branch is mentioned, where is the question likely referring to?

    <p>Left coronary artery (B)</p> Signup and view all the answers

    Which statement is not true concerning the fetal circulation?

    <p>The umbilical artery carries oxygenated blood to the fetus (B)</p> Signup and view all the answers

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