Embryology Flashcards
1
Q
Endoderm
A
Lining of trachea and bronchial tree
2
Q
Visceral mesoderm
A
All other lung tissue
3
Q
Lung bud develops
A
From foregut
Trachea and oesophagus formed
4
Q
Congenital defects
A
Oesophageal Atresia
Tracheoesephageal Fistula
5
Q
Oesophageal Atresia
A
Blind ending
Oesophagus splits
Fuses to and blocked by trachea
6
Q
Tracheoesephageal Fistula
A
Communication
Oesophagus forms hole into trachea
7
Q
Stages of lung maturation
A
Elephants Play Chess in Sunny Africa
8
Q
Elephants Play Chess in Sunny Africa
A
Embryonic Pseudoglandular Canalicular Saccular Alveolar
9
Q
Embryonic
A
Resp diverticulum form
Including branches
26 days - 6 weeks
10
Q
Pseudoglandular
A
More branching
Terminal bronchioles
6-16 weeks
11
Q
Canalicular
A
Resp bronchioles and alveolar ducts start to form
16-28 weeks
12
Q
Saccular
A
Terminal sacs form
28-32 weeks
13
Q
Alveolar
A
Alveoli mature
36 weeks to early childhood
