Diaphragm and Intercostal Muscles Quiz

The diaphragm develops from all of the following except?

• Septum transversum

• Pleuroperitoneal membrane

• Dorsal mesentery of foregut

• Neural crest cells

The diaphragm is innervated by?

• Intercostal nerves

• Vagus nerve

• Phrenic nerve

• Thoracodorsal nerve

The main opening for the inferior vena cava in the diaphragm is at which vertebral level?

• T6

• T8

• T10

• T12

Esophageal opening in diaphragm is at?

• T6

• T8

• T10

• T12

The diaphragm receives blood supply from?

• Internal thoracic artery

• Superior phrenic artery

• Inferior phrenic artery

• All of the above

Which structure passes through the aortic hiatus of diaphragm?

• Esophagus

• IVC

• Aorta

• Thoracic duct

A lesion of phrenic nerve causes?

• Respiratory failure

• Diaphragmatic paralysis

• Hiccups

• Esophageal spasm

A congenital diaphragmatic hernia most commonly occurs through?

• Esophageal hiatus

• Foramen of Morgagni

• Foramen of Bochdalek

• Aortic hiatus

Which part of diaphragm is muscular?

• Central tendon

• Peripheral part

• All of it is fibrous

• Crura only

The muscle fibers of diaphragm insert into the?

• Aortic arch

• Central tendon

• Ligamentum arteriosum

• Costal margin