pneumocyte
pneumo.site · being built
| What it is | An epithelial cell lining the lung's alveoli, the air sacs where gas is exchanged. |
|---|---|
| Comes from | Lung progenitor |
| About | Cells lining the terminal airways that are on the way to becoming type II pneumocytes already make surfactant protein A message at 19 to 20 weeks of gestation, and mature type II cells hold it only after birth. |
| Source | Khoor A, Gray ME, Hull WM, Whitsett JA, Stahlman MT. Developmental expression of SP-A and SP-A mRNA in the proximal and distal respiratory epithelium in the human fetus and newborn. J Histochem Cytochem. 1993;41(9):1311-9. PMID: 8354874 |
| Status | being built; its twin, knowledge and helper come with pneumo.site |