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Flashcards in Respiratory Development Deck (14):
1

what does TBX4 do in lung formation?

determines location of lung bud and induces formation
induces differentiation of lungs

2

Larynx, trachea, bronchi, and most of the lung epithelium is formed by what?

endoderm

3

connective, muscular, and cartilaginous tissue in the trachea and lungs is formed by what?

splachnic mesoderm

4

what separates the lung bud from the foregut?

2 tracheoesophageal ridges

5

what divides the foregut into a dorsal and ventral part?

tracheoesophageal septum

6

the larynx internal lining is derived from what?

endoderm

7

what do the cartilages and muscles of the larynx originate from?

4th and 6th pharyngeal arches

8

what are the 4th arch derivatives of the larynx innervated by?

superior laryngeal nerve

9

what are the 6th arch derivatives of the larynx innervated by?

recurrent laryngeal nerve

10

what is the space the lung buds expand into?

pericardioperitoneal canals

11

what 2 folds separate the pericardioperitoneal cavity into 3 spaces?

the pleuroperitonial
the pleuropericardial

12

Mature alveoli are present at birth- TRUE or FALSE?

FALSE

13

why is fetal breathing movements important before birth?

it conditions the muscles
stimulates lung development

14

esophageal atresia and tracheoesophageal fistulas are associated w/ VACTERL. What does that stand for?

vertebral abnormalities
anal atresia
cardiac
tracheoesophageal fistulas
esophageal hiatus
renal anomalies
limb defects