Night terrors are a form of sleep disorder in which a person partially awakens from sleep in a state of terror. Night terrors are not nightmares, which are a form of dreaming. Night terrors in children are not usually caused by an underlying condition. In adults, they may be caused by an anxiety disorder or substance abuse.
Ovaries Essentials. 1  The ovaries maintain the health of the female reproductive system. 2  They secrete two main hormonesâestrogen and progesterone. 3  Diseases associated with the ovaries include ovarian cysts, ovarian cancer, menstrual cycle disorders, and polycystic ovarian syndrome. They secrete two main hormonesâestrogen and progesterone. 2  Diseases associated with the ovaries include ovarian cysts, ovarian cancer, menstrual cycle disorders, and polycystic ovarian syndrome.
They are located in the pelvis, one on each side of the uterus. The ovaries are connected to each other by the Fallopian tubes. Each ovary is about the size and shape of an almond. The ovaries have two functions: they produce eggs (also called ova) and female hormones. The size of each ovary is about 1.5 inches long. Each month, during the menstrual cycle, an egg is released from one ovary. The egg travels from the ovary through a fallopian tube to the uterus.