FACTOID # 21: 15% of Army recruits from South Dakota are Native American, which is roughly the same percentage for female Army recruits in the state.
 
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Encyclopedia > Theca folliculi
Theca folliculi
Mature late-stage tertiary (Graffian) follicle
Early folliculogenesis from primordial to early tertiary.
Latin theca folliculi
Dorlands/Elsevier t_07/12801620

The theca folliculi comprise a layer of the ovarian follicles. They appear as the follicles become tertiary follicles. Image File history File links Mature_Graffian_follicle. ... Image File history File links Follicle_histology. ... Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... Elseviers logo. ... Ovarian follicles or Graafian follicles (after Regnier de Graaf) are the roughly spherical cell aggregations in the ovary containing an ovum and from which the egg is released during ovulation. ...


The theca are divided into two layers: "theca interna" and "theca externa".

After rupture of the mature ovarian follicle, the theca interna cells differentiate into the theca lutein cells of the corpus luteum. These cells secrete estradiol. Luteinizing hormone (LH) is a hormone synthesized and secreted by gonadotropes in the anterior lobe of the pituitary gland. ... Androstenedione (also known as 4-androstenedione) is a 19-carbon steroid hormone produced in the adrenal glands and the gonads as an intermediate step in the biochemical pathway that produces the androgen testosterone and the estrogens estrone and estradiol. ... Estriol. ... Tropocollagen triple helix. ... Ovarian follicles or Graafian follicles (after Regnier de Graaf) are the roughly spherical cell aggregations in the ovary containing an ovum and from which the egg is released during ovulation. ... The corpus luteum (Latin for yellow body) is a small, temporary endocrine structure in animals. ... Estradiol (17β-estradiol) (also oestradiol) is a sex hormone. ...


See also

Strawberry anther with parallel thecae In botany, the theca (plural thecae) of an angiosperm is half of the anther. ...

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