Obstetric and Gynecological Nursing - The Carter Center

Identification On inspection, the placenta will appear torn at
the edge, or torn blood vessles may extend beyond the edge
of the placenta.
Circumvallate placenta In this situation an opaque ring is
seen on the fetal surface. It is formed by a doubling back of
the chorion and amnion.
Danger may result in the memberanes leaving the placenta
nearer the center instead of at the adge as usually.
Battledore inseration of the cord The cord in this case is
attached at the very edge of the placenta in the manner of the
table tennis bat.
Danger Likely it is detached up on applying traction during
active management of the third stage of labour.
Velamentous insertion of the cord It is inserted into the
memberans some distance from the edge of the placenta. The
umblical vessles run through the memberanous frorm the cord
to the placneta.
Danger The vessles may tear with cervical dilatation and
would result in sudden blood loss.
Bipartite Placenta Two complete and separate lobes are
present, each with a cord leaving it. The bipartite cord joins a
short distance from the two parts of the placenta.
Danger-The extra lobe may retained during delivery.
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