ferning

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ferning

 [fern´ing]
the appearance of a fernlike pattern in a dried specimen of cervical mucus, an indication of the presence of estrogen, usually seen at the midpoint of the menstrual cycle; it can be helpful in the determination of ovulation. The same phenomenon occurs with premature rupture of the fetal membranes.

fern·ing

(fĕrn'ing),
1. A term used to describe the pattern of arborization produced by cervical mucus, secreted at midcycle, on crystallization, when it somewhat resembles a fern or a palm leaf.
2. Synonym(s): filigree burn
A term for 2 microscopic patterns bearing a remarkably faithful similarity to its namesake, related to normal gynaecologic physiology, which indicate that ovulation has occurred
Cytology A palm leaf-like pattern seen in dried endocervical mucus, consisting of a branched heterogeneous network of crystallised glycoprotein, NaCl and KCl salts, which forms a parallel canalicular system facilitating sperm penetration; it is induced by oestrogen and seen from days 7-18, peaking on day 14 of the menstrual cycle
Endometrium Complex branching of endometrial glands, which is histologic evidence that ovulation has occurred; other parameters corroborating ovulation include subnucleolar vacuolization with palisading of the gland cells, stromal ‘decidualization’, glandular necrosis, vascular thrombosis, inflammation and aggregates of stromal cells

fern·ing

(fĕrn'ing)
Pattern of arborization produced by a thin film of cervical mucus, secreted at midcycle, on drying, which somewhat resembles a fern or a palm leaf.
References in periodicals archive ?
(2000) observed cervical mucus from 60 crossbred cows at AI and found that 55.26 percent cows with typical fern pattern. Kumarsen et al.
Although, typical fern pattern confirms stage of estrus and is associated with higher conception rate, the pattern may not have any relationship of cervical dilatation.
Influence of plasma proges terone level and cervical mucus fern pattern at oestrus on conception rate in bovines.
For the regional chains, the Tuscany collection includes Milan, a brocade-damask pattern in teal, burgundy, gold and navy; Villa D'Este, a damask with architectural elements in black, gold and platinum; Elbe, featuring a woven jacquard fern pattern on the comforter, and San Remo, a dense botancial that graduates to a more open floral.
Capitalizing on advancements in several areas, including microfluidics, artificial intelligence (AI) and the ubiquity of smartphones, the team has built an ovulation testing tool that can automatically detect fern patterns a marker of ovulation in a saliva sample.
The software then analyzed the fern patterns, correctly identifying ovulation in 99 percent of samples and non-ovulation in 100 percent of the samples.
Cynthia, 61, told William that the Filmy Fern patterned white shawl - made from merino wool - had been designed by Margaret Stove, who had also made one for William when he was a baby.
charming Cynthia, 61, told William that the Filmy Fern patterned white shawl - made from merino wool - had been designed by Margaret Stove, who had also made one for William when he was a baby.