Respiratory Embryology Flashcards Preview

Systems 1 Anatomy > Respiratory Embryology > Flashcards

Flashcards in Respiratory Embryology Deck (26):
1

What action gives rise to the primitive gut tube?

Folding

2

The trachea and lungs form from what?

Foregut

3

What is the name of the median outgrowth from the ventral foregut?

Laryngotracheal groove (diverticulum)

4

What forms between the trachea and oesophagus to separate them?

Oesophagotracheal septum

5

What is a fistula? What is common in the respiratory system?

Abnormal/surgical passage made between two tubular organs
(tracheoesophageal fistula common)

6

Atresia is what?

Condition in which a passage is closed or absent

7

The visceral pleura is formed of what?

Splanchnic mesoderm

8

The parietal pleura is formed of what?

Somatic mesoderm

9

The gap between the parietal and visceral pleura is called what?

Pleuroperitoneal canals

10

What are the pleuroperitoneal folds?

Folds forming around the heart separating pleural and pericardial cavities

11

Sequence of differentiation of lung buds

Embryonic
Pseudoglandular
Canalicular
Saccular
Alveolar

12

Common congenital conditions of the lungs

Surfactant deficiency
Accessory lobe
Lung agenesis
Lobe of azygos vein

13

Which 4 embryonic components form the diaphragm?

Septum Transversum
Pleuroperitoneal membranes
Dorsal mesentery of oesophagus
Muscular ingrowth from lateral body walls

14

Septum Transversum forms what?

Central tendon of the diaphragm

15

The Pleuroperitoneal membranes form what?

Primitive diaphragm

16

The Dorsal mesentery of oesophagus forms what?

Median portion of diaphragm
Crura of diaphragm

17

Muscular ingrowth from lateral body walls forms what?

Peripheral diaphragm

18

Where is septum transversum intially located? Which way does it migrate?

C3-C5 somites
Migrates caudally

19

3 major defects in congenital diaphragm disorders?

Failure of diaphragm to close
Herniation into chest
Pulmonary hypoplasia

20

What are the diaphragmatic hernias?

Incomplete development of the diaphragm
Posterolateral
Anterior
Central

21

What are hiatus hernias?

Bulging of the stomach into the chest through the oesophageal hiatus

22

What are the two types of hiatus hernia?

Sliding
Paraesophageal

23

What structure forms the central tendon?

Septum transversum

24

What structure forms the crura and medial portion of the diaphragm?

Dorsal mesentery

25

What structure forms the primitive diaphragm?

Pleuroperitoneal membranes

26

What structure forms the peripheral diaphragm?

Muscular ingrowth from the lateral body walls