1 / 27

RESPIRATORY SYSTEM EMBRYOLOGY

RESPIRATORY SYSTEM EMBRYOLOGY. Dr Shivaram Bhat. Parts of Respiratory tract. Upper RT – nose, nasal cavity, pharynx Lower RT – larynx, trachea, bronchi, lungs. LEARNING OBJECTIVES. Formation of laryngotracheal diverticulum Devlopment of larynx Development of lungs

cady
Download Presentation

RESPIRATORY SYSTEM EMBRYOLOGY

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. RESPIRATORY SYSTEMEMBRYOLOGY Dr ShivaramBhat

  2. Parts of Respiratory tract • Upper RT – nose, nasal cavity, pharynx • Lower RT – larynx, trachea, bronchi, lungs

  3. LEARNING OBJECTIVES • Formation of laryngotrachealdiverticulum • Devlopment of larynx • Development of lungs • Anomalies of trachea and lungs

  4. Questions • Embryology of lungs • Laryngotrachealdiverticulum • Tracheooesophageal fistula • Stages of maturation of lungs

  5. Time line • 4 weeks – laryngotrachealdiverticulum • 5-16 week – terminal brochiole (PG stage) • 16-26 week – resp. bronchiole, alv. Duct (canalicular stage) • 26 week-birth – prim. alv. (saccular stage) • 8 months – 8 yrs – true alv. (alv. stage)

  6. Anomalies • Laryngeal atresia/stenosis • Laryngeal web

  7. Lung development

  8. Lung development

  9. Anomalies • Tracheo-esophageal fistula • VACTERL association • Tracheal bronchus • Agenesis, hypoplasia • Abnormal lobes • Azygos lobe, accessory lobe • Congenital polycystic lung (honey comb lung)

  10. Tracheooesophageal fistula

  11. Agenesis

  12. Accessory lobes

  13. Clinical /forensic significance • Foetal lung vs adult lung • Hyaline membrane disease/ respiratory distress syndrome

  14. Hyaline membrane disease

More Related