The exogenous progesterone effect, aka pill endometrium, occurs when a female takes a contraceptive consisting of progesterone. This causes a ripening of the endometrium consisting of increased stroma, plumping of cells (pseudodecidua), and edema. The major difference between this and the secretory phase is that the glands are small and atrophic because they lack a priming by estrogen, therefore the endometrium will break down regularly and you will get DUB (dysfunctional uterine bleeding).
Exogenous behavior is the behavior that is derived externally and outside the body. Exogenous behavior can also be in reference to outside sources that effect us, such as temperature and sunlight.
Yes, the progestin is drosperinone.
The progestin in the progestin-only pill causes changes in the endometrium that prevent implantation. The low dose of estradiol in the combination pill prevents the surge in LH production. The low doses of progestin and estradiol in the combination pill have a negative feedback effect on the hypothalamus, blocking ovulation.
Some pills contain only progestin
Contraceptives contain two hormones, estrogen and progestin or progestin only.
Some pills contain only progestin
exogenous pathogens.
Exogenous infection is a bacterial infection that develops from the outside of the body. Exogenous bacteria are foodborne and waterborne which can be consumed directly or through secondary host.
Exogenous is the use of something from outside the organism - such as insulin. A link with a longer definition is below.
I believe, exogenous virus exist as: "replication competent viruses that are transmitted horizontally in mice, while endogenous viruses exist as germline sequences that are usually not replication competent by may recombine with exogenous viruses during the course of infection." This would refer to exogenous retroviruses.
Beatrice Ashem has written: 'The effect of exogenous adrenalin upon the instrumental bar pressing response and the conditioned emotional response'
destin, progestin