Respiratory Normal/Abnormal Development

Question 1

Laryngotracheal groove forms between which pharyngeal arches?

Answer 1

4 and 6

Question 2

Epithelium and glands of the respiratory system come from what embyological tissue?

Answer 2

Endoderm

Question 3

Connective tissue, cartilage, and smooth muscle develop from what embryoligical tissue?

Answer 3

Splanchnic mesenchyme

Question 4

Laryngeal cartilage comes from what embryological tissue?

Answer 4

neural crest mesenchyme

Question 5

Nerves involved in laryngeal innervation?

Answer 5

superior and recurrent

from vagus

Question 6

Most common anomaly of the lower respiratory tract?

Answer 6

Tracheoesophageal fistula

Question 7

Common occurrence with tracheoesophageal fistula?

Answer 7

esophageal atresia

Question 8

Result of tracheoesophageal fistula in utero?

Answer 8

polyhyramnios

Question 9

Visceral pleura arrises from:

Answer 9

splanchnic mesoderm

Question 10

Parietal pleura arrises from:

Answer 10

somatic mesoderm

Question 11

Associated with congenital diaphragmatic hernia:

Answer 11

Lung hypoplasia

Question 12

Epithelial cells that exchange:

Answer 12

Type I alveolar cells (pneumocytes)

Question 13

Epithelial cells that secrete surfactant:

Answer 13

Type II alveolar cells

Question 14

Alveoli develop until age?

Answer 14

8

Question 15

Deficiency in surfactant and injury to the alveolar wall resulting in protein rich fibrin rich exudation:

Answer 15

Hyaline membrane disease –> respiratory distress syndrome