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Relating to a gonad.


Relating to a gonad.


(go'nad) (gon'ad) [Gr. gone, seed]
1. The embryonic sex before differentiation into definitive testis or ovary.
2. A generic term referring to the female ovaries and the male testes. Each forms the cells necessary for human reproduction: spermatozoa from the testes, ova from the ovaries. See: estrogen; ovary; testicle; testosterone


Female: The follicles of the ovaries secrete estrogen, which helps regulate the menstrual cycle and the development of the secondary sex characteristics. The corpus luteum also produces progesterone, which stimulates growth of blood vessels in the endometrium for the implantation of a fertilized egg. Male: The interstitial cells of the testes secrete testosterone, which is essential for maturation of sperm and for development of the secondary sex characteristics.

Hormones from both sexes have been isolated and standardized and are used to treat conditions arising from an insufficiency of these hormones.

gonadal, adjective


pertaining to or arising from a gonad. See also testicular, ovarian.

gonadal cords
cords formed by epithelial cells which migrate from the mesonephric tubules in the embryo to the gonadal ridge and establish the indifferent stage of gonadogenesis.
gonadal ridge
the structures in the embryo to which the primordial germ cells migrate, and from which the gonads develop.
gonadal steroids
see steroid.
gonadal stromal tumor
tumors of granulosa cells and thecal cells of the ovary.
References in periodicals archive ?
While those with high basal FSH, LH, low testosterone but low normal response to hCG stimulation were diagnosed as partial gonadal dysgenesis19.
Brain and gonadal tissues were dissected, the tissues were immediately stored at -80AdegC for gene expression analysis and stored in formaldehyde for subsequent histological observation.
As with other species of the superfamily Solenoidea, it would be appropriate to use the gonadal condition index instead of the body condition index as a quantitative scale for the reproductive cycle of the S.
Translocations involving autosomes and the X chromosome with gonadal dysgenesis have been described by a few studies.
El indice gonadal fue de 1,9 [+ or -] 0,38 para machos y 1,8 [+ or -] 0,37 para las hembras, sin diferencias significativas entre sexos (P < 0,05).
Among reproductively active fish, oocytes in various stages of development including vitellogenic oocytes were present while the gonad of post-spawning fish were characterized by the presence of yellow-brown bodies and large, centrally located gonadal lumen (Figure 3 a, b).
Donde talla de madurez gonadal (TMG) se considera la talla al 50%, medida que se utilizo para las comparaciones entre quinquenios.
Regarding 95 cases included in the DGD group, there was a predominance of partial and mixed gonadal dysgenesis, followed by ovotesticular DSD.
Clinical and gonadal features and early surgical management of 45,X/46,XY and 45,X/47,XYY chromosomal mosaicism presenting with genital anomalies.
Once the hysterectomy is completed, grasp the round ligament, tube, and uterineovarian pedicle, placing slight tension on the pedicle, and free the right round ligament to ease isolation of the gonadal vessels.
Although male Nile tilapia of the different treatments showed similar morphological characteristics, fish exposed to 24 L:0D exhibited a higher length and weight as well as a lower gonadal weight and gonadosomatic index, which can related to inhibition of gonadal maturation and increased energy invested in somatic growth.
She was managed conservatively and referred to an OB/GYN, who recommended a venogram and left gonadal vein coil embolization.