And finally, it plays a role in relaxing our joints and ligaments that are found in the women's pelvic region. And this is basically to prepare our women for birth. Now, let's move on to the third type of hormone, which is a glycoprotein. This is our human Coriana gonadotropin, or HCG. Now, this is a glycoprotein and that means it's water soluble, it can easily dissolve in the blood and it binds onto the membrane of our plasma cells, of our target cells, plasma membrane, and it basically creates some type of response inside that cell. Now, there are two important functions of our human corianic, natotropin, and this hormone is released as soon as our zygote actually implants onto the endometrium of the uterus of the mother.