THE TEMPORARY ANATOMICAL STRUCTURES PROMINENT IN THE FIRST TRIMESTER MAY BE FULFILLING EXCHANGE FUNCTIONS ASSIGNED TO THE PLACENTA IN THE 2ND AND 3RD TRIMESTER

Authors
DOCHERTY SM ILES RK WATHEN N CHARD T
Citation
Sm. Docherty et al., THE TEMPORARY ANATOMICAL STRUCTURES PROMINENT IN THE FIRST TRIMESTER MAY BE FULFILLING EXCHANGE FUNCTIONS ASSIGNED TO THE PLACENTA IN THE 2ND AND 3RD TRIMESTER, Human reproduction, 11(6), 1996, pp. 1157-1161
Citations number
42
Categorie Soggetti
Reproductive Biology
Journal title
Human reproduction → ACNP
ISSN journal
02681161
Volume
11
Issue
6
Year of publication
1996
Pages
1157 - 1161
Database
ISI
SICI code
0268-1161(1996)11:6<1157:TTASPI>2.0.ZU;2-A
Abstract
The extra-embryonic coelom (EEC) and secondary yolk sac are prominent structures in the gestational sac during the first trimester of human pregnancy, at a time before the definitive placental circulation becom es established. We propose that the EEC and yolk sac play a critical r ole in the nutrition of early pregnancy, fulfilling exchange functions which are assumed by the placenta at a later stage.