Notes in Emb. RS (3)

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Published	02/10/2024	Folding of embryo gives rise to the primitive {{c1::gut tube}} from the endodermIt has three parts - {{c2::foregut}}, {{c2::midgut}}, {{c2::hindgut}}
Published	02/10/2024	Respiratory system structures develop from {{c1::foregut}} part of primitive gut tube
Published	02/10/2024	• At 4 weeks, trachea and lung buds emerge out from the {{c1::ventral}} wall of the primitive foregutThis is why the trachea is {{c1::anterior}} to th…
Published	02/10/2024	The {{c1::oesophagotracheal septum}} is a structure that develops between the oesophagus and trachea, completely separating them.
Published	02/10/2024	{{c1::Fistula}} describes an abnormal passage between 2 epithelialized tubes or surfaces.{{c1::Atresia}} describes a condition in which an orifice or …
Published	02/10/2024	What happens if the trachea and oesophagus don’t separate? {{c1::Tracheoesophageal fistula (TOF)}} and {{c1::Oesophageal Atresia}}
Published	02/10/2024	{{c1::Splanchnic}} layer of lateral plate mesoderm → forms {{c2::visceral}} pleura {{c1::Somatic}} layer of lateral plate mesoderm → forms {{c2::parie…
Published	02/10/2024	Lung buds will push the {{c1::splanchnic}} mesoderm towards the {{c1::somatic}} mesoderm and become completely surrounded by both layers. The spa…
Published	02/10/2024	The space between the two layers of mesoderm (splanchnic & somatic) around the lungs is continuous with the heart in front and the peritoneal cavi…
Published	02/10/2024	The {{c1::pleuropericardial fold}} is a fold of lateral plate somatic mesoderm that grows from the periphery of the embryo.It closes off the pleural c…
Published	02/10/2024	Describe the stages in development of lungs
Published	02/10/2024	The {{c1::Saccular}} stage (27 - 40 weeks) of the development of lungs is when {{c2::gas exchange}} begins.
Published	02/10/2024	{{c1::Neonatal Respiratory Distress Syndrome (Hyaline Membrane Disease)}} is a congenital lung condition caused by surfactant deficiency which le…
Published	02/10/2024	{{c1::Lung agenesis}} is a congenital lung condition caused by failure of lung bud to develop due to insufficient mesoderm or teratogens.
Published	02/10/2024	The {{c1::diaphragm}} closes off the pleural cavities from the peritoneal cavity of the abdomen.
Published	02/10/2024	The diaphragm develops from 4 mesodermal structures:[1] {{c1::Septum transversum}}[2] {{c1::Pleuroperitoneal folds}}[3] {{c1::Skeletal muscl…
Published	02/10/2024	The {{c1::septum transversum}} is an embryonic structure that forms the central tendon of the diaphragm
Published	02/10/2024	The {{c1::dorsal mesentry of the oesophagus (Oesophagus mesentry)}} attaches the embryological oesophagus to the posterior thoracic wall.
Published	02/10/2024	Skeletal muscle from the periphery covers the dorsal mesentery to form the {{c1::diaphragmatic crura}}.
Published	02/10/2024	Skeletal muscle ingrowth from the peripheral body wall inwards to cover the pleuroperitoneal folds forms the {{c1::muscular}} part of the diaphragm.
Published	02/10/2024	{{c1::Hernia}} is a general term used to describe a protrusion of an organ through the structure or muscle that usually contains it.
Published	02/10/2024	Failure of the diaphragm to completely close during development leads to the formation of {{c1::hernias}}
Published	02/10/2024	{{c1::Pulmonary hypoplasia}} is a congenital abnormality, characterized by incomplete development of the lungs, resulting in an abnormally l…
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