Question 61 Match the primordial component of the thoracoabdominal diaphragm on

Question

Question 61 Match the primordial component of the thoracoabdominal diaphragm on the right with the description on the left. Two selections are used TWICE. Becomes the central tendon A. dorsal mesentery of the esophagus B. septum transversum C. muscular ingrowth from lateral body walls D.septum transversum Contributes to peripheral parts of the diaphragm Completes partition between the thoracic and abdominal cavities and fuses with the dorsal mesentery of the esophagus Forms a thick incomplete partition between the pericardial and abdominal cavities Forms a large portion of the fetal diaphragm Fuses with the septum transversum and nearby mem branes the pericardial and abdominalroperitoneal membranes - F. pleuroperitoneal membranes · ·

Explanation / Answer

D. Septum traversum: forms a thick incomplete partition between pericardial and abdominal cavities.

B. Septum traversum: becomes the central tendon

Myoblasts originate from here and invade pleuriperitoneal folds resulting in muscular diaphragm formation.

C. Muscular in growth from lateral body walls: contributes to peripheral parts of diaphragm.

While the external layer becomes part of completes partition between the thoracic and abdominal cavities and fuses with the dorsal mesentry of the esophagus

A. Dorsal mesentry: fuses with septum traversum and nearby membranes

F. Pleuriperitoneal membrane: forms large portion of fetal diaphragm.

E. Pleuriperitoneal membrane: completes partition between the thoracic and abdominal cavities and fuses with the dorsal mesentry of esophagus.

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