Flashcards in Respiratory Development Deck (14):
what does TBX4 do in lung formation?
determines location of lung bud and induces formation
induces differentiation of lungs
Larynx, trachea, bronchi, and most of the lung epithelium is formed by what?
connective, muscular, and cartilaginous tissue in the trachea and lungs is formed by what?
what separates the lung bud from the foregut?
2 tracheoesophageal ridges
what divides the foregut into a dorsal and ventral part?
the larynx internal lining is derived from what?
what do the cartilages and muscles of the larynx originate from?
4th and 6th pharyngeal arches
what are the 4th arch derivatives of the larynx innervated by?
superior laryngeal nerve
what are the 6th arch derivatives of the larynx innervated by?
recurrent laryngeal nerve
what is the space the lung buds expand into?
what 2 folds separate the pericardioperitoneal cavity into 3 spaces?
Mature alveoli are present at birth- TRUE or FALSE?
why is fetal breathing movements important before birth?
it conditions the muscles
stimulates lung development