Intermediate Diaphragm Quiz

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This quiz contains 10 questions. Click below to begin.

Q1. Which opening in the diaphragm allows passage of the aorta?

  • Thoracic inlet
  • Caval opening
  • Aortic hiatus
  • Esophageal hiatus

Q2. Which structure passes through the esophageal hiatus?

  • Inferior vena cava
  • Esophagus
  • Thoracic duct
  • Aorta

Q3. The phrenic nerve originates from which spinal nerve roots?

  • T1–T4
  • C1–C3
  • C3–C5
  • L1–L3

Q4. Which vessels supply arterial blood to the diaphragm?

  • Bronchial arteries
  • Pulmonary arteries
  • Superior mesenteric artery
  • Inferior phrenic arteries

Q5. Which side of the diaphragm is usually higher?

  • Both sides equal
  • Neither side
  • Left side
  • Right side

Q6. The crura of the diaphragm are composed of which type of muscle tissue?

  • Fibrous cartilage
  • Bone tissue
  • Cartilaginous tissue
  • Tendinous and muscular tissue

Q7. Which nerve supplies sensory innervation to the peripheral portions of the diaphragm?

  • Vagus nerve
  • Sympathetic trunk
  • Lower intercostal nerves
  • Phrenic nerve

Q8. What structure passes through the aortic hiatus along with the aorta?

  • Thoracic duct
  • Inferior vena cava
  • Esophagus
  • Bronchial artery

Q9. In which developmental structure does the diaphragm primarily originate?

  • Mesonephros
  • Pleuroperitoneal membrane
  • Septum transversum
  • Allantois

Q10. Which condition involves congenital failure of diaphragm formation leading to abdominal contents entering the thorax?

  • Congenital diaphragmatic hernia
  • Gastroschisis
  • Omphalocele
  • Spina bifida
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