Lecture 1 Study Guide Anatomy and Physiology

1. Define Anatomy and Physiology and discuss their relationship. ● Anatomy-study of structure ● Physiology-study of function ● These two relate because it is how living system work together at many levels 2. Describe the levels of organization from atom to organism. ● Atom-Molecule-Macromolecule-Organelle-Cell-Tissue-Organ-Organ system-Organism 3. Define homeostasis and its components including: ● Maintenance of stable internal environment despite continuous outside changes Variable: Different “things” can disturb the stable environments known as variables Ex: Weather Normal range: The range in which your body can be in a stable state Ex: 7 is the normal range for PH Receptor: Sense changes Control center: Receives info from receptor/ Sends commands to the effector Effector: Respond to changes