vesicular ovarian follicle

(redirected from secondary follicle)

follicle

 [fol´ĭ-k'l]
a sac or pouchlike depression or cavity. adj., adj follic´ular.
atretic ovarian follicle an involuted ovarian follicle.
dental follicle the structure within the substance of the jaws enclosing a tooth before its eruption; the dental sac and its contents.
gastric f's lymphoid masses in the gastric mucosa.
graafian follicle see graafian follicle.
hair follicle one of the tubular invaginations of the epidermis enclosing the hairs, and from which the hairs grow.
Diagram of a hair follicle showing layers of hair schematically. From Copstead, 1995.
lymph follicle (lymphatic follicle)
2. lymphatic nodule (def. 2).
Naboth's f's (nabothian f's) Naboth's cysts.
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 ovarian 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 f's
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 f's discrete cystlike units filled with a colloid substance rich in iodine; they constitute the lobules of the thyroid gland.
vesicular ovarian follicle graafian follicle.

ve·sic·u·lar o·var·i·an fol·li·cle

[TA]
a follicle in which the primary oocyte attains its full size and is surrounded by an extracellular glycoprotein layer (zona pellucida) that separates it from a peripheral layer of follicular cells permeated by one or more fluid-filled antra; the primary oocyte occupies the cumulus oophorus; the theca of the follicle develops into internal and external layers.

vesicular ovarian follicle

graafian follicle.

ve·sic·u·lar o·var·i·an fol·li·cle

(vĕ-sik'yū-lăr ō-var'ē-ăn fol'i-kĕl) [TA]
A follicle in which the oocyte attains its full size and is surrounded by an extracellular glycoprotein layer (zona pellucida) that separates it from a peripheral layer of follicular cells permeated by one or more fluid-filled antra; the theca of the follicle develops into internal and external layers.
Synonym(s): antral follicle, graafian follicle, secondary follicle.

Graaf,

Reijnier de, Dutch physiologist and histologist, 1641-1673.
graafian follicle - a follicle in which the oocyte attains its full size. Synonym(s): vesicular ovarian follicle

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.
References in periodicals archive ?
3 (a) Primary follicle 14236 [+ or -] 4493 (a) Secondary follicle 83898 [+ or -] 14259 (a) Antral follicle 135878 [+ or -] 20427 (a) Vesicular ovarian follicles 249730 [+ or -] 48791 (a) Sham Primordial follicle 1525 [+ or -] 643.
Then, the H&E stained ovary samples were examined for histopathological evaluation using light microscopy, followed by counting primordial (PrF), primary (PF), and secondary follicle in each ovarian tissue.
The following follicle classification [sup][15],[16] was utilized: Type 1, primordial follicle, one layer of flattened granulosa cells surrounding the oocyte; Type 2: primary follicle, one to fewer than two complete layers of cuboidal granulosa cells; Type 3: secondary follicle, an oocyte surrounded by greater than one layer of cuboidal granulosa cells, with no visible antrum; Type 4: atretic follicle, the morphology of follicle is irregular, granulosa cells became less or disappeared.
29) demonstrated that estrogen induced an increase in the ovarian theca-interstitial area, the secondary follicle population and expression of some developmental gene.
C, Secondary follicle with a reactive germinal center showing polarization into (a) dark and (b) light zones.
Secondary follicle (FII) (an oocyte surrounded by more than one layer of cuboidal cells but with antrum andzonapellucida in between).
2006) (12-32 [micro]m, 34-190 [micro]m and 530-1620 [micro]m, respectively); however, the variation found for the mean diameter of secondary follicle (114.
When the cell layer around the ova multiplies (becomes multicellular), the follicle is classified as a secondary follicle.
This hypothesis was in agreement with results of Luz et al that demonstrated the secondary follicle has lower viability and normal morphology than other follicular development stages (36).
The basic criterion for distinguishing a primary follicle from a secondary follicle is the presence of sweat gland in primary follicle.
The antral phase of follicular growth begins when a secondary follicle begins to develop a fluid-filled antrum to become a tertiary follicle.
The cultured follicles were frequently detached from the bottom of culture dishes by mechanical pipetting and on day 4 of culture, they were transferred into 10 [micro]l droplets prepared by secondary follicle culture medium.