RT Journal Article
T1 Fetal development of the minor lung segment
A1 Abe, Shinichi
A1 Yamamoto, Masahito
A1 Noguchi, Taku
A1 Yoshimoto, Toshihito
A1 Kinoshita, Hideaki
A1 Matsunaga, Satoru
A1 Murakami, Gen
A1 Rodríguez Vázquez, José Francisco
AB The mediobasal segment (S7) of the right lung has been considered to correspond to the cardiac lobe generally seen in mammals. To investigate fetal development of the right mediobasal segmental bronchus (B7), we examined paraffin-embedded serial sections of 15 embrynic and fetal lungs at 7-8 weeks (serial sections) as well as semiserial sections of 8 fetuses at 15-18 weeks (semiserial sections). All of the smaller specimens did not contain B7, but 2 of the 8 larger specimens carried B7: one was found in the immediately anterior side of the inferior pulmonary vein, while in the other, the subdivisions (B7a, B7b) were overriding the vein. Although the incidence might be underestimated because of observations using semiserial sections, the B7 was most likely to develop secondarily during a period from 8 to 15 weeks. Fetal topographical changes (mainly, the descent) of the middle lobe and the inferior pulmonary vein might relate with the secondarily budding of B7. The present result does not reduce a clinical relevance of B7 as a segmental bronchus of the lung segment system.
PB Korean Association of Anatomists
SN 2093-3665
YR 2014
FD 2014-03-01
LK https://hdl.handle.net/20.500.14352/110070
UL https://hdl.handle.net/20.500.14352/110070
LA eng
NO Abe, S., Yamamoto, M., Noguchi, T., Yoshimoto, T., Kinoshita, H., Matsunaga, S., Murakami, G., & Rodríguez-Vázquez, J. F. (2014). Fetal development of the minor lung segment. Anatomy & cell biology, 47(1), 12–17. https://doi.org/10.5115/acb.2014.47.1.12
DS Docta Complutense
RD 9 abr 2025