embryology

Question 1

what does the endoderm give rise too

Answer 1

lining of the trachea and bronchial trees (lung bud)

Question 2

What does the mesoderm give rise too

Answer 2

smooth muscle, cartilage and blood supply

Question 3

how to primary bronchial bids form

Answer 3

bifurcation of the trachea into the right and second bronchi

Question 4

name the 5 stages of lung development (elephants play chess (in) sunny africa)

Answer 4

embryonic –> pseudoglandular –> canalicular –> saccular –> alveolar

Question 5

what happens in the embryonic stage of the lung

Answer 5

resp diverticulum divides of oesophagus forming branches and segments

Question 6

what happens in the pseudoglandular stage of the lung

Answer 6

terminal bronchioles form

Question 7

what happens in the canalicular stage of the lung

Answer 7

resp bronchioles form

Question 8

what happens in the saccular stage of the lung

Answer 8

terminal sacs begin to form

Question 9

what happens in the alveolar stage of the lung

Answer 9

alvolar sacs mature