By means of the sodium-potassium pump, living human cells pump three sodium ions out of the cell in exchange for two potassium ions pumped in; comparing ion concentrations across the cell membrane, inside to outside, potassium measures about 40:1, and sodium, about 1:10.
However, in some cases, the enlarged ovary may twist or become dysfunctional. Ovarian cancer and benign tumors may also lead to an enlarged ovary. Common causes of an enlarged ovary include: Corpus luteum cyst (cyst present in the second half of the menstrual cycle) Dermoid cyst (benign tumor also known as a teratoma) Follicle cyst (cyst that forms during the menstrual cycle) Endometrioma (endometriosis affecting the ovary)
They are fluid-filled sacs that form in or on a woman's ovaries. Symptoms of ovarian cysts depend to a large extent on the size of the cyst. Many ovarian cysts produce no symptoms. Large or ruptured ovarian cysts can cause symptoms including pain, pelvic pressure or discomfort. Vaginal (pelvic) ultrasound can be used to reveal the presence of ovarian cysts. Ovarian cysts can vary in size. Many are very small, while cysts associated with ovarian tumors may be 12 inches or more in diameter.