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.
1 The anterior pituitary or adenohypophysis is a classical gland composed predominantly of cells that secrete protein hormones. 2  The posterior pituitary or neurohypophysis is not a separate organ, but an extension of the hypothalamus.hese hypothalamic hormones reach the anterior pituitary through the following route: 1  A branch of the hypophyseal artery ramifies into a capillary bed in the lower hypothalamus, and hypothalmic hormones destined for the anterior pituitary are secreted into that capillary blood.