NURS 1002 Study Guide - Midterm Guide: Zipper, Carboxylic Acid, Glycocalyx
30 Sep 2016
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Chapter 1- an introduction to anatomy and physiology. The ability to maintain a relatively stable internal environment. Homeostasis allows the body to maintain its physiological parameter in a normal range around a predetermined set point. Describe the role of negative and positive feedback in maintaining homeostasis. Negative feedback- opposes the original stimulus; diminishes or minimizes the change that activated the system. Works to return the system back to its normal set point. Example: temperature regulation; regulation of blood carbon dioxide level; regulation of blood glucose level. Positive feedback- enhances the change that initiated the response. Example: blood clotting; child birth; disease states- cardiac failure. Specimen is presented facing forward, toes pointing forward, the feet shoulder- width apart and the palms facing forward. Important because it creates a standard point of reference that facilitates communication among science and health care professionals. Use anatomical terms to describe body parts and regions.
