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Levels of estriol in women who are not pregnant are almost undetectable. [3] However, during pregnancy, estriol is synthesized in very high quantities by the placenta and is the most produced estrogen in the body by far, [ 3 ] [ 4 ] although circulating levels of estriol are similar to those of other estrogens due to a relatively high rate of ...
Sex pheromones are a special type of olfactory signal, produced to attract the opposite sex, to encourage mating or to perform some other function closely related to sexual reproduction. While humans are highly dependent upon visual cues, smells can also play a role in sociosexual behaviors. An inherent difficulty in studying human pheromones ...
Vaginal lubrication is a naturally produced fluid that lubricates the vagina. Vaginal lubrication production increases significantly during sexual arousal in anticipation of sexual intercourse. [1] Vaginal dryness is the condition in which this lubrication is insufficient, and sometimes artificial lubricants are used to augment it. Without ...
[1] [2] This mixture is constantly produced by the cells of the vagina and cervix, and it exits the body through the vaginal opening. The composition, quality, and amount of discharge varies between individuals, and can vary throughout the menstrual cycle and throughout the stages of sexual and reproductive development. [ 3 ]
Pregnenolone is produced mainly in the adrenal glands, the gonads, and the brain. [4] Although pregnenolone is also produced in the gonads and brain, most circulating pregnenolone is derived from the adrenal cortex. [17] To assay conversion of cholesterol to pregnenolone, radiolabeled cholesterol has been used. [18]
The corpus luteum (Latin for "yellow body"; pl.: corpora lutea) is a temporary endocrine structure in female ovaries involved in the production of relatively high levels of progesterone, and moderate levels of estradiol, and inhibin A. [1] [2] It is the remains of the ovarian follicle that has released a mature ovum during a previous ovulation. [3]
The somata of early-born Kenyon cells are pushed outward as more Kenyon cells are created. This results in a concentric pattern of cell bodies, with the somata of the last-born cells in the center, where the neuroblast had been, and the somata of the first-born cells at the outermost margins of the cell body area. [1]
Newly produced smegma has a smooth, moist texture. It is thought to be rich in squalene [11] and contain prostatic and seminal secretions, desquamated epithelial cells, and the mucin content of the urethral glands of Littré. [9] Smegma contains cathepsin B, lysozymes, [12] chymotrypsin, neutrophil elastase and cytokines, which aid the immune ...