The term ovum is usually restricted to the single female sex cell, but the term egg, in its common use to indicate a bird's egg, refers to a more complex structure, only part of which is produced in the ovary of the bird. The ovum of such an egg is a cell swollen with yolk material. The rest of the eggâe.g., the jelly mass surrounding amphibian eggs, and the shell, membranes, and egg white, or albumen, of bird eggsâis not cellular and is secreted around the ovum as it passes down the oviduct.
Cushing's disease---also known as Cushing's syndrome---and Addison's disease occur when your adrenal glands do not produce proper amounts of a hormone called cortisol.
Addison's disease is a medical condition in which the adrenal glands stop making hormones important for certain bodily functions. Addison's disease is characterized by weight loss, muscle weakness, fatigue, low blood pressure, and sometimes darkening of the skin in both exposed and non-exposed parts of the body.Other names for Addison's disease include primary adrenal insufficiency and hypocortisolism.ortisol. Cortisol belongs to a class of hormones called glucocorticoids, which affect almost every organ and tissue in the body. Scientists think that cortisol has possibly hundreds of effects in the body. Cortisol's most important job is to help the body respond to stress.