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CVRR 32 Lung Development


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Right
The [_______] bronchus descends more vertically, meaning inhaled objects are more prone to falling into it
3, 2
There are [_] right lobar bronchi, and [_] left lobar bronchi
Bronchopulmonary segment
Tertiary bronchi each supply a [_______]
Visceral pleura
In lung development, splanchnic mesoderm gives rise to [_______]
Parietal pleura
In lung development, somatic mesoderm gives rise to [_______]
Pseudoglandular
The period of histogenesis of the lungs between weeks 5-17 of pregnancy
Canalicular
The period of histogenesis of the lungs between weeks 16-25 of pregnancy
Terminal sac
The period of histogenesis of the lungs at week 24 of pregnancy
Alveolar
The period of histogenesis of the lungs from birth till about 8 years old
Canalicular period
Respiration is possible towards the end of the [_______] because some terminal sacs (primitive alveoli) have developed
22-23, 22
Nuffield BioEthics report 2006 recommends normally not attempting resuscitation at [__-__] weeks, and never attempting it below [__] weeks
Cranial
In the canalicular period, there is cranio-caudal differentiation, with the [_______] part being more advanced
Respiratory distress syndrome
Fetuses born prematurely (24 weeks) can survive if given intensive care but may suffer from [_______]
Circulate amniotic fluid
Breathing movements start in utero and serve to [_______]
Bronchopulmonary dysplasia
Chronic lung injury in preterm infants may cause [_______]
Glucocorticoids and artificial surfactant therapy
Two treatment options for respiratory distress syndrome
Fistula
A term used to describe an abnormal connection or passageway between two epithelium-lined organs or vessels that normally do not connect
Tracheo-esophageal fistula with esophageal atresia
A congenital abnormality where the esophagus is blind-ended and there is an opening present between it and the trachea
Tracheo-esophageal fistula
A congenital abnormality where there is an opening present between the esophagus and trachea
Lung hypoplasia
A congenital abnormality where the lungs are under-developed
Lung agenesis
A congenital abnormality where the lungs are completely absent
Vertebral, anal, cardiovascular
A summary of congenital defects which follow the acronym 'VACTERL'. [_______], [_______], [_______], trachea, esophagus, renal and limb
Trachea, esophagus, renal and limb
A summary of congenital defects which follow the acronym 'VACTERL'. Vertebral, anal, cardiovascular, [_______], [_______], [_______] and [_______]
Polyhydramnios
A term used to describe an excess of amniotic fluid in the amniotic sac
Dribbles milk and distended abdomen
Typical symptoms of tracheo-esophageal fistula with esophageal atresia
1 in 3000-4500 live births
The frequency of tracheo-esophageal fistula with esophageal atresia (1 in _____ )
H type
Tracheo-esophageal fistula sometimes has the prefix [_______]
4%
The percentage of cases of tracheal/esophageal abnormalities that are isolated tracheo-esophageal fistula