Information Assurance (IA) refers to the steps involved in protecting information systems, like computer systems and networks. There are commonly five terms associated with the definition of information assurance: Integrity; Availability; Authentication; Confidentiality; Nonrepudiation; IA is a field in and of itself. It can be thought of as a specialty of Information Technology (IT), because an IA specialist must have a thorough understanding of IT and how information systems work and are interconnected.
Overview of Hypothalamic and Pituitary Hormones. The pituitary gland is often portrayed as the master gland of the body. Such praise is justified in the sense that the anterior and posterior pituitary secrete a battery of hormones that collectively influence all cells and affect virtually all physiologic processes. The pituitary gland may be king, but the power behind the throne is clearly the hypothalamus.
Hormone secretion from the anterior pituitary gland is regulated by hormones secreted by the hypothalamus. Neuroendocrine cells in the hypothalamus project axons to the median eminence, at the base of the brain.