Atlas de Anatomia do Corpo Humano - Central

The atlas of human body

Ovary
Ovary

The reproductive organ (GONADS) in female animals. In vertebrates, the ovary contains two functional parts

Ovarian Follicle
Ovarian Follicle

An OOCYTE-containing structure in the cortex of the OVARY. The oocyte is enclosed by a layer of GRANULOSA CELLS providing a nourishing microenvironment (FOLLICULAR FLUID). The number and size of follicles vary depending on the age and reproductive state of the female. The growing follicles are divided into five stages

Granulosa Cells
Granulosa Cells

Supporting cells for the developing female gamete in the OVARY. They are derived from the coelomic epithelial cells of the gonadal ridge. Granulosa cells form a single layer around the OOCYTE in the primordial ovarian follicle and advance to form a multilayered cumulus oophorus surrounding the OVUM in the Graafian follicle. The major functions of granulosa cells include the production of steroids and LH receptors (RECEPTORS, LH).

Corpus Luteum
Corpus Luteum

The yellow body derived from the ruptured OVARIAN FOLLICLE after OVULATION. The process of corpus luteum formation, LUTEINIZATION, is regulated by LUTEINIZING HORMONE.

Luteal Cells
Luteal Cells

PROGESTERONE-producing cells in the CORPUS LUTEUM. The large luteal cells derive from the GRANULOSA CELLS. The small luteal cells derive from the THECA CELLS.

Testis
Testis

The male gonad containing two functional parts

Leydig Cells
Leydig Cells

Steroid-producing cells in the interstitial tissue of the TESTIS. They are under the regulation of PITUITARY HORMONES; LUTEINIZING HORMONE; or interstitial cell-stimulating hormone. TESTOSTERONE is the major androgen (ANDROGENS) produced.

Gonads
Gonads

The gamete-producing glands, OVARY or TESTIS.

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