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.
Ovaries are oval-shaped endocrine system glands, the group of glands that produce a variety of hormones human body needs to function appropriately. Ovaries are found in females, one on each side of the uterus. An ovum is a female reproductive cell.