Diaphragm Structure and Openings Quiz
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Questions and Answers

Which part of the diaphragm has no bony attachment?

  • Peripheral muscular part
  • Central aponeurotic part (correct)
  • Both portions have bony attachment
  • None of the above

Which major opening of the diaphragm is at the level of the T8 vertebra?

  • Aortic opening
  • Esophageal opening
  • Vena caval opening (correct)
  • None of the above

Which structure is unaffected by the contraction of the diaphragm?

  • Aorta (correct)
  • Thoracic duct
  • Azygos vein
  • None of the above

Which major opening of the diaphragm widens and dilates the inferior vena cava (IVC) during diaphragmatic contraction?

<p>Vena caval opening (C)</p> Signup and view all the answers

At which vertebral level is the esophageal opening of the diaphragm located?

<p>T10 (A)</p> Signup and view all the answers

Which type of hernia is the most common fetal congenital diaphragmatic hernia?

<p>Bochdalek hernia (A)</p> Signup and view all the answers

Which side is Bochdalek hernia more commonly found?

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

Which structure forms a sphincter in the diaphragm, constricting the esophagus during inspiration?

<p>Esophageal opening (C)</p> Signup and view all the answers

Which organ partially herniates into the chest in cases of Bochdalek hernia?

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

Which major opening of the diaphragm is located in front of the T12 vertebra?

<p>Vena caval opening (B)</p> Signup and view all the answers

The vena caval opening widens and the IVC dilates during the contraction of the diaphragm. True or false?

<p>True (A)</p> Signup and view all the answers

The oesophageal opening of the diaphragm forms a sphincter that constricts the oesophagus during inspiration. True or false?

<p>True (A)</p> Signup and view all the answers

The diaphragm has a direct bony attachment to the T8 vertebra. True or false?

<p>False (B)</p> Signup and view all the answers

Which nerve supplies the central part of the diaphragm?

<p>Phrenic nerves (B)</p> Signup and view all the answers

Which nerve supplies the peripheral parts of the diaphragm?

<p>Lower intercostal nerves (B)</p> Signup and view all the answers

In approximately 10% of cases, which nerve supplies the lateral part of the diaphragm?

<p>Accessory phrenic nerve (D)</p> Signup and view all the answers

Which nerves supply the inferior surface of the diaphragm?

<p>Phrenic nerves (C3-5) (A)</p> Signup and view all the answers

Which nerves supply the sensory innervation of the diaphragm?

<p>Phrenic nerves (A)</p> Signup and view all the answers

Which part of the diaphragm increases the vertical diameter of the thoracic cavity during inspiration?

<p>Central part (D)</p> Signup and view all the answers

Which muscle is the main muscle for the majority of lung capacity during respiration?

<p>Diaphragm (A)</p> Signup and view all the answers

A person with a spinal cord injury below C5 will still have diaphragmatic respiration even if all intercostal muscles are paralyzed.

<p>True (A)</p> Signup and view all the answers

Referred pain from the periphery of the diaphragm can be felt in which regions?

<p>Thorax and abdomen (B)</p> Signup and view all the answers

Referred pain from the central part of the diaphragm is typically felt in which regions?

<p>Neck and shoulder (A)</p> Signup and view all the answers

In addition to respiration, the diaphragm provides additional power for which expulsive acts?

<p>All of the above (D)</p> Signup and view all the answers

Which radiographic view provides a front view of the chest wall?

<p>PA (posterior-anterior) (A)</p> Signup and view all the answers

Which radiographic view provides a side view of the chest wall?

<p>LL (latero-lateral) (B)</p> Signup and view all the answers

Which rib is the mid clavicular lung margin located at?

<p>6th rib (C)</p> Signup and view all the answers

At which rib is the pleural margin located for the mid axillary lung margin?

<p>8th rib (B)</p> Signup and view all the answers

Where is the pleural margin located for the mid scapular lung margin?

<p>12th rib (C)</p> Signup and view all the answers

At which rib level is the pleural margin located in the mid-scapular line?

<p>10th rib (C)</p> Signup and view all the answers

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