Abstract:
:Our current knowledge of the human placenta is briefly reviewed. Particular stress is placed upon the considerable functional reserve capacity of the placenta, the unimportance of most visible abnormalities of the placenta, the lack of any evidence that the placenta ages during gestation and the lack of significance of placental weight. The effects on the placenta of infection and of maternal cigarette smoking are considered and the concept of placental insufficiency critically discussed. It is concluded that most cases of 'placental insufficiency' are, in reality, examples of maternal vascular insufficiency resulting from inadequate placentation during the early stages of pregnancy.
journal_name
Midwiferyjournal_title
Midwiferyauthors
Fox Hdoi
10.1016/s0266-6138(05)80132-9subject
Has Abstractpub_date
1991-03-01 00:00:00pages
31-9issue
1eissn
0266-6138issn
1532-3099pii
S0266-6138(05)80132-9journal_volume
7pub_type
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