The respiratory system

Presentation on theme: "The respiratory system"— Presentation transcript:

1 The respiratory system
陳建榮

2 Respiratory diverticulum:
4-week embryo Respiratory diverticulum: 4-week embryo 4th pharyngeal arch Laryngotracheal groove喉氣管溝

3 Respiratory diverticulum
tracheal bud 氣管芽 laryngotracheal tube喉氣管管 primary bronchial buds 原始支氣管芽 Tracheoesophageal fold fused  esophagus and laryngotracheal tube

4 Pharynx 咽

5 咽下隆起 杓狀軟骨腫部 Laryngotracheal groove  T-shape laryngeal inlet Hypopharyngeal eminence  post. 1/3 portion of tongue and epiglottis

6 Development of trachea

7 Tracheal stenosis氣管狹窄

8 Trachea or esophagus Stenosis Atresia Fistula Tracheal stenosis氣管狹窄 Laryngeal web喉網

9 Tracheoesophageal fistula
氣管食道瘻管

10 Esophageal atresia or fistula

11 Development of lung

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13 Maturation of the lung:
Pseudoglandular period假腺體期 6～16 weeks Canalicular period管道化期 16~26 weeks Respiratory bronchioles, alveolar ducts appear Terminal saccular period終囊期 26 weeks ~ birth Blood-air barrier, type I and II alveolar cells apear Alveolar period肺泡期 32 weeks ~ 8 years

14 Pseudoglandular period假腺體期

15 Canalicular period管道化期
Alveolar duct

16 Terminal saccular period終囊期

17 Alveolar period肺泡期

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