velamen

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Related to velamentous: succenturiate

velamen

[və′lā·mən]
(botany)
The corky epidermis covering the aerial roots of an epiphytic orchid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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95.45% cases (N= 105) were presented with central insertion (Figure 4), 3.64% cases (N= 4) were presented with marginal insertion of the cord (Figure 5) and 0.91% cases (N= 1) were presented with velamentous insertion of the cord (Figure 6).
** includes thin cord, marginal or velamentous insertion, and single umbilical artery.
Umbilical cord entry abnormity (UCEA) includes marginal umbilical cord entry abnormity (MUCEA) and velamentous umbilical cord entry abnormity (VUCEA).1 It is known that marginal umbilical cord entry, namely battledore placenta, accounting for 7% of all is commonly seen.
In our study, one of the cases had a placenta with velamentous insertion of cord and another case exhibited placentomegaly with a bulky placenta.
Shootlessness, velamentous roots, and the pre-eminence of Orchidaceae in the epiphytic biotipe.
co.uk HIGH-RISK GROUPS FOR VASA PRAEVIA * Painless bleeding during pregnancy * Low-lying placenta or placenta praevia * Bi-lobed or succenturiate-lobed placenta * Velamentous insertion of the umbilical cord * IVF pregnancies (increases risk to one in 300) * Multiple/twin pregnancies * History of uterine surgery, previous C-section or D&C
Instead he recorded that Megan died before birth as a result of a common condition called velamentous insertion of the umbilical cord which caused key veins to be squashed in the narrow birth canal, depriving the brain of blood and oxygen.
The pathology report, which was reduced to typewritten form and placed in Diana's medical record two days after her birth, showed that there was a velamentous insertion of the umbilical cord into the placenta.
In addition, abnormal insertion, particularly velamentous and marginal (Figure 12), harbors a higher risk of umbilical cord compression, entanglement, vascular compromise, fetal growth restriction, and adverse perinatal outcome.
The umbilical cord insertion to the placenta is divided as central/ eccentric, marginal and velamentous as it relates to the chorionic plate.
Good Hope now routinely checks for velamentous insertion - the condition which led to Megan Leake's death seven minutes after she was born.