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Development of The Lower Respiratory System
The Lower Respiratory System- QUIZ
Answer the following questions about respiratory development
.
Good luck!
The lung bud mesenchyme gives rise to the:
pseudostratified columnar epithelium
epithelial lining of the alveolar sac
type 2 alveolar epithelial cells
smooth muscles
all of the above
The lung buds grow into the coelomic cavity in the region:
pericardial cavity
pericardio-peritoneal canals
peritoneal cavity
amniotic cavity
septum transversum
The adult lung alveoli number is reached by:
canalicular period
terminal sac period
alveolar period
newborn
childhood 8 years of age
The diaphragm is derived from:
septum transversum
pleuroperitoneal folds
body wall mesoderm
dorsal esophageal mesentery
all of the above
The cartilages and muscles of the larynx are derived from:
1st and 2nd pharyngeal arches
endoderm
4th and 6th pharyngeal arches
3rd and 5th pharyngeal arches
all of the above
The formation of Type 1 and Type 2 alveolar epithelial cells happens in:
pseudoglandular period
canalicular period
terminal sac period
alveolar period
none of the above
In the ___ week of development, the ___ divides the trachea ventrally from the esophagus dorsally.
4th week, tracheoesopheageal folds
4th week, larygotracheal groove
5th week, laryngeal orifice
5th week, tracheoesopheageal folds
none of the above
The tracheal smooth muscle, connective tissue, and C-shaped cartilage rings are derived from:
endoderm
visceral mesoderm
5th pharyngeal arch
ectoderm
6th pharyngeal arch
The MAIN bronchi divide into
3 right, and 2 left lobar bronchi
3 left, and 2 right lobar bronchi
2 right, and 3 left segmental bronchi
2 left, and 3 left segmental bronchi
3 right, and 2 left bronchopulmonary segments
Type 2 alveolar epithelial cells:
make up the blood-air barrier
are produced in the pseudoglandular period
produce a fluid called surfactant
all of the above
none of the above
Which of the following is results in an abnormal opening between the trachea and esophagus?
Esophageal atresia
Tracheo-esophageal fistule
Diaphragm eventration
Pulmonary hypoplasia
Pulmonary aplasia
Bronchial malformations may also occur if the disturbance occurs:
after 16 weeks
after 20 weeks
before 16 weeks
at birth
none of the above