atretic follicle


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Related to atretic follicle: corpus albicans, secondary follicle

a·tret·ic fol·li·cle

(ă-tret'ik fol'i-kĕl)
A follicle that degenerates before coming to maturity; many atretic follicles occur in the ovary before puberty; in the sexually mature woman, several are formed each month.
Synonym(s): corpus atreticum.

atretic follicle

An ovarian follicle that has undergone degeneration or involution.
See also: follicle

atretic

being in a state of atresia; without an opening.
atretic follicle
an ovarian follicle in an undeveloped state due to immaturity, poor nutrition or systemic disease; manifested by prolonged anestrus.

follicle

a sac or pouchlike depression or cavity.
atretic follicle
an involuted ovarian follicle.
conjunctival follicle
focal accumulations of hypertrophied lymphoid tissue in conjunctiva, indicative of an inflammatory reaction.
cystic follicle
ovarian follicle that has not ruptured, is grossly enlarged, may be multiple and on both ovaries. Caused by insufficient luteinizing hormone. Affected cows may be nymphomaniac in behavior, but most are anestrous and anovulatory. See also cystic ovarian degeneration.
dental follicle
the structure within the substance of the jaws enclosing a tooth before its eruption; the dental sac and its contents.
dominant follicle
in the ovary, hormones secreted by the largest follicle will cause others to regress.
gastric follicle
lymphoid masses in the gastric mucosa.
graafian follicle
a maturing ovarian follicle among whose cells fluid has begun to accumulate, leading to the formation of a single cavity and leaving the ovum located in the cumulus oophorus; called also vesicular ovarian follicle.
hair follicle
see hair follicle.
hemorrhagic follicle
see corpus hemorrhagicum.
lymph follicle, lymphatic f
1. a small collection of actively proliferating lymphocytes in the cortex of a lymph node.
2. a small collection of lymphoid tissue in the mucous membrane of the gastrointestinal tract; such collections may occur singly (solitary lymphatic follicle) or closely packed together (aggregated lymphatic follicles).
ovarian follicle
the ovum and its encasing cells, at any stage of its development.
primary ovarian follicle
an immature ovarian follicle consisting of an immature ovum and the few specialized epithelial cells surrounding it.
primordial follicle
an ovarian follicle consisting of an ovum enclosed by a single layer of cells.
sebaceous follicle
a hair follicle with a relatively large sebaceous gland, producing a relatively insignificant hair.
solitary follicle
1. areas of concentrated lymphatic tissue in the mucosa of the colon.
2. small lymph follicles scattered throughout the mucosa and submucosa of the small intestine. Called also solitary glands.
thyroid follicle
discrete cystlike units filled with a colloid substance, constituting the lobules of the thyroid gland.
vesicular ovarian follicle
graafian follicle.
wool follicle
site of origin of wool fiber.
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References in periodicals archive ?
According to HE staining of slices of the right ovary, it was found that the ovarian tissue was destroyed and there were few structurally complete follicles and abundant atretic follicles in the 0 mg/kg curcumin group compared to the normal control [Figure 1];[Table 3].
Protective Effects of Curcumin against Sodium Arsenite-induced Ovarian Oxidative Injury in a Mouse Model
Indeed, atretic follicles were observed in all classes of transitioning fish: early, mid, and late.
Gonadal restructuring during sex transition in California Sheephead: a reclassification three decades after initial studies
Scores of 1 +, 2 +, 3 + and 4 + were, respectively, considered for atretic follicles with 25, 50, 75 and 100 percent positivity for lipid staining.
Uterine artery interruption: evidence for follicular growth and histochemical and biochemical changes
On the other hand, group C reported higher count of atretic follicles and corpora lutea in comparison to controls.
Predictive accuracy of anti mullerian hormone as indicator of ovarian follicle loss in cyclophosphamide treated mice
Sections were examined by using calibrating ocular graticule for the number and diameter of primary, antral and atretic follicles and number and size of the ovarian cysts, by the method described earlier.
EFFECT OF AQUEOUS GARLIC EXTRACT ON ANDROGEN INDUCED CHANGES IN OVARIES OF PREPUBERTAL FEMALE ALBINO RATS
No mature follicles were found in the left ovary, and a small amount of mature and atretic follicles were identified in the right ovary.
Analysis of morpho-functional characteristics of uterine horns in ovarian sclerosis
These atretic follicles were found in oocyte samples from mature or maturing females.
Histological characterization of oocyte developmental stages of suruvi Steindachneridion scriptum kept in captivity/Caracterizacao histologica das fases de desenvolvimento ovocitario de suruvi Steindachneridion scriptum em condicoes de cativeiro
Macrophages cluster around atretic follicles and are involved in their clean up of the atretic follicles.
Intraovarian control of selective follicular growth and induction of oocyte maturation in mammals
Town Creek females exhibited atretic follicles beginning in January and throughout the study.
Reproductive development in the Black Darter (Etheostoma duryi)
BPA causes slowing down of oogenesis increase in the number of atretic follicles and connective tissue in the ovaries besides discontinuation in growth of developing follicles and start of follicle breakdown.
Histological Changes in Zebrafish (Danio rerio) Ovaries Following Administration of Bisphenol A
During autumn, many atretic follicles began to appear and the pre-vitellogenic follicles began to increase in number again (Figure 8).
Seasonal histological changes in gonads of the catfish (CLARIAS LAZERA)
In the ovarian sections, the number of atretic follicles and regressing corpus luteum that retained at least one caspase-3-positive cell was counted and divided by the total number of follicles and corpus luteum, respectively, in order to calculate the incidence (percentage) of follicular atresia and luteal regression.
Bisphenol a exposure during adulthood causes augmentation of follicular atresia and luteal regression by decreasing 17[beta]-Estradiol synthesis via downregulation of aromatase in rat ovary

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