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15 Cards in this Set
- Front
- Back
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During embryonic development, from what outpocketing does the lower respiratory system grow out? |
cranial foregut |
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What forms in the floor of the primitive pharynx that develops into the lungs? |
laryngotracheal diverticulum |
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From what embryonic origin is the laryngotracheal diverticulum derived? |
endoderm |
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What is the embryonic origin of cartilage, muscle, and connective tissue of the lungs? |
splanchnic mesoderm |
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What is the purpose of the transesophogeal folds? |
To separate the respiratory and digestive systems |
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What opening connects the laryngotracheal tube to the pharynx? |
laryngeal inlet |
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What indication on prenatal ultrasound can suggest a possible esophageal atresia? |
Polyhydramnios |
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After birth, what signs suggest esophageal atresia? (4) |
- saliva accumulation - cyanosis after drinking - abdominal distension from crying - pneumonitis |
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What group of anomalies is associated with tracheoesophageal atresia? |
Vertebral anomalies Anal atresia Cardiovascular anomalies Tracheoesophageal fistulas Esophageal atresia Renal anomalies Limb defects
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What is the embryonic origin of visceral pleura?
parietal? |
visceral - splanchnic mesoderm
parietal - somatic mesoderm |
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How many orders of branching occurs in bronchial development? |
24 |
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What purpose does breathing amniotic fluid into lungs have? (2) |
- Lung development - Conditioning breathing muscles |
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What do neonatal lungs look like on an x-ray compared to older patients? |
Denser bc fewer alveoli |
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With what is respiratory distress syndrome in neonates associated? |
Deficiency in surfactant |
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What is the damage caused by RDS called? |
Hyaline membrane disease |
