Development & anomalies respiratory system embryology
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Transcript of Development & anomalies respiratory system embryology
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Respiratory systemDevelopment & anomalies
Maj Rishi Pokhrel, MDAnatomy
NAIHSwww.slideshare.net
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What triggers labor of childbirth?
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Respiratory diverticulum
25 Day embryo
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Partition of tubes
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Larynx
6 week 12 week
4th arch: superior laryngeal N 6th arch: superior laryngeal N
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Trachea, bronchi & lungs
Prenatal: 17 generationsPostnatal: 6 generations
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• Epithelium: endoderm• Cartilage, muscles, connective tissue:
mesoderm
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Pleural cavity
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Maturation of lungs
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DEVELOPMENT OF DIAPHRAGM
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Defects in partition of foregutesophageal atresia / Tracheo-esophagal fistula
Total Incidence: 1/3000
90%4%4%
1% 1%
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VACTERAL association
• V: Vertebral anomalies• A: Anal atresia• C: cardiac defects• E: esophageal atresia• R: renal anomalies• L: limb defects
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• Respiratory distress syndrome / hyaline membrane disease
• Ectopic lung lobes• Congenital cysts of lungs
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Assignment
• Poly-hydraminos?• Oligo-hydraminos?
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