As I traced theplacentae upwards, the ovules appeared, becoming gradually more abundant towards its apex.
Yet when I call to mind the state of the placentaein A.
The production opposite the placentae necessarily divides the ovula of one placenta into two parcels, and these are they that have no adhesion with the axis.
The anomalous formation arises first from parietal placentae being produced to the axis, and from spurious growth from the sides of the ovary also meeting in the axis, by which the ovula are divided into four bundles.
In other cases, they are separated from each other by an intervening space of membranes; and in one rare instance of triplet placentae the umbilical arteries of two placentae anastomosed with each other, before dividing into smaller branches.
The placentae of twins are usually expelled together, forming one large placentary mass; their vessels, however, are distinct from each other, so that with care one placenta can be peeled away from the other.
The same general arrangement holds good in the diffused placentae of other forms, and in the polycotyledonary placenta of the Ruminantia, but the foetal villi (C) in the latter acquire an arborescent form.
The presence of zonary placentae in Hyrax and Elephas does not necessarily afford any proof of affinity of these types with the Carnivora.
It thus comes about that in some placentae the maternal and foetal parts simply separate from each other at birth, and in others the two remain intimately locked together, and both are shed together as the afterbirth.
The remaining Ungulata with diffused placentae do not differ in any important particulars from those already described.
Its essential character consists in the foetal villi not being uniformly distributed, but collected into patches or cotyledons which form as it were so many small placentae (fig.
Pod 1-celled, either 1-seeded and indehiscent, or several-seeded with 2 parietal placentae and deciduous valves.
Placentae in the axis, often projecting far into the cells.
Pod globular, partly 3-celled; the 3 broad and thin placentae borne on imperfect partitions, each bearing 2 seeds on the face toward the valve; in our species the placentae curve backward and partly enclose the seeds.
Ovary and capsule 2-celled, the placentae often projecting from the axis far into the cells.
Capsule 4-valved, the valves bearing the placentae on their middle.
Ovary 1-celled, becoming a 2-valved pod with two parietal or basal placentae bearing numerous small comose seeds; perianth none.
Ovary 3-celled, with the thick placentaein the axis.
Same in fruit, the placentae now separate and rounded.
There is every gradation between this and the three-celled ovary with the placentae in the axis, even in the same genus, sometimes even in different stages in the same pistil (Fig.
It generally opens by two valves from below upward, and the placentaewith the partition are left behind when the valves fall off.
Cross section of an ovary of Hypericum graveolens, the three large placentae meeting in the centre, so as to form a three-celled ovary.
Abruptio placentae is a tearing loose of a placenta which is situated in the normal position, not abnormally as in placenta praevia.
In a removal of the fetus after an abruptio placentae the death of the fetus is not caused by the physician at all, but by the force that effected the abruptio.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "placentae" in a variety of sentences. We hope that you will now be able to make sentences using this word.
