Pneumocytes

Question 1

Very thin squamous cells which cover around 97% of the alveolar surface

Answer 1

Type 1 pneumocytes

Question 2

Cuboidal cells
Secrete surfactant

Develop ~24 weeks gestation, however adequate surfactant production does not take place until around 35 weeks

Answer 2

Type 2 pneumocytes

Question 3

Type 2 pneumocytes can differentiate into Type 1 pneumocytes during lung damage. TRUE/FALSE?

Answer 3

TRUE

Question 4

When does surfactant production take place?

Answer 4

~35 weeks gestation
(Type 2 pneumocytes which go on to produce surfactant will develop at 24 weeks gestation)

Question 5

non-ciliated dome-shaped cells found in the bronchioles.

They have a varied role including protecting against the deleterious effects of inhaled toxins and the secretion of glycosaminoglycans and lysozymes.

Answer 5

Club cells (prev. called Clara cells)