| folliculus | 1. <anatomy> Generally a small sac or vesicle. 2. <botany> A kind of fruit formed from a single carpel, that splits to release its seeds. 3. <dermatology> A hair follicle, an invagination of the epidermis into the dermis surrounding the hair root. 4. <gynaecology, physiology> An ovarian follicle, an oocyte surrounded by one or more layers of granulosa cells. As the ovarian follicle develops a cavity forms and it is then termed a Graafian follicle. (12 Nov 1997) |
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| folliculus lymphaticus | Lymphatic follicle, one of the spherical masses of lymphoid cells, frequently having a more lightly staining centre. See: solitary lymphatic follicles, Peyer's patches. Synonym: folliculus lymphaticus, lymph nodule, nodulus lymphaticus. (05 Mar 2000) |
| folliculus ovaricus primarius | An ovarian follicle before the appearance of an antrum; marked by developmental changes in the oocyte and follicular cells so that the latter form one or more layers of cuboidal or columnar cells; the follicle becomes surrounded by a sheath of stroma, the theca. Synonym: folliculus ovaricus primarius. (05 Mar 2000) |
| folliculus ovaricus vesiculosus | 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: folliculus ovaricus vesiculosus, graafian follicle, secondary follicle. (05 Mar 2000) |
| folliculus pili | <dermatology> A tube-like opening in the epidermis where the hair shaft develops and into which the sebaceous glands open (13 Nov 1997) |
| margo liber ovarii | The unattached, posterior margin of the ovary. Synonym: margo liber ovarii. (05 Mar 2000) |
| margo mesovaricus ovarii | The border of the ovary to which the mesovarium is attached. Synonym: margo mesovaricus ovarii, mesovarian margin of ovary. (05 Mar 2000) |
| rete ovarii | <physiology> A transient network of cells in the developing ovary; homologous to the rete testis. (05 Mar 2000) |
| cortex ovarii | The layer of the ovarian stroma lying immediately beneath the tunica albuginea, composed of connective tissue cells and fibres, among which are scattered primary and secondary (antral) follicles in various stages of development; the cortex varies in thickness according to the age of the individual, becoming thinner with advancing years. Synonym: cortex ovarii. (05 Mar 2000) |
| hilum ovarii | The depression along the mesovarian margin, at the insertion of the mesovarium, where vessels and nerves enter or leave the ovary. Synonym: hilum ovarii. (05 Mar 2000) |
| hydrops ovarii | A collection of fluid in the ovary. Synonym: hydrops ovarii. (05 Mar 2000) |
| stratum granulosum ovarii | The layer of small cells that forms the wall of an ovarian follicle. Synonym: granular layer of a vesicular ovarian follicle, granulosa, membrana granulosa, stratum granulosum ovarii. (05 Mar 2000) |
| stroma ovarii | The fibrous tissue of the medulla of the ovary. Synonym: stroma ovarii. (05 Mar 2000) |
| struma ovarii | A rare teratoid tumour of the ovary composed almost entirely of thyroid tissue, with large follicles containing abundant colloid. Occasionally there are symptoms of hyperthyroidism. 5-10% of struma ovarii become malignant, the only absolute criterion for which is the presence of metastasis. (12 Dec 1998) |
| extremitas tubaria ovarii | The rounded lateral end of the ovary, usually directed toward the infundibulum of the uterine tube. Synonym: extremitas tubaria ovarii, lateral pole. (05 Mar 2000) |
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