Chapter 1 and 2

Chapter 1 and 2 - 1/13/2009 HP 320 Biological & Behavioral...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
1/13/2009 1 HP 320 Biological & Behavioral Basis of Disease Instructor : Sondos Islam, Ph.D., M.P.H., M.S. Teacher Assistant : Sean Godar, PhD graduate student in Pharmacology Course Overview Organization of the Human Body Medical Terminology Tissues, Glands and Membranes Anatomy : the study of the structures of the body & the relationship among these structures – the “ what ” and “ where ” of the body Physiology: the study of how the body functions – the “how” is often on a chemical level Pathology: the study of diseases Pathophysiology: the study of – the mechanisms by which diseases occur, and – the responses of the body to disease, and their effects on normal body functions Levels of Structural Organization The Integumentary System Support & Movement Systems
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
1/13/2009 2 Transport Systems Reproductive System Life Function Terms Responsiveness : ability to sense external & internal changes & react accordingly Metabolism : cellular chemical reactions necessary for Excretion : elimination of wastes from metabolic reactions, gases, and digested substances Growth : Survival Needs • Oxygen • Water • Nutrients • A stable body temperature
Background image of page 2
1/13/2009 3 Homeostasis A dynamic state of equilibrium necessary for normal body functioning What are the consequences of homeostatic imbalance? Which body systems maintain homeostasis? How does an organism achieve homeostasis? Feedback Regulation • Negative Feedback : shuts off the original stimulus, or decreases its intensity (like a thermostat) – most homeostatic control mechanisms • Positive Feedback : increases the original stimulus to push the variable farther, i.e. a given action promotes more of the same – occurs in 2 circumstances only, can you guess which ones? The Language of Anatomy: Directional Terms Term Definition Example Superior/Cranial/ Cephalic Towards the head or above another structure The forehead is superior to the nose Inferior/Caudal Away from the head or below another structure The navel is inferior to the breastbone Anterior/Ventral At the front of the body; in front of a structure The breastbone is anterior to the spine Posterior/Dorsal At the back of the body; behind a structure The heart is posterior to the breastbone The Language of Anatomy: Directional Terms Term Definition Example Medial Toward or at the midline of the body The heart is medial to the arm Lateral Away from the midline of the body The arms are lateral to the chest Proximal Near the point of attachment to the trunk or near the beginning of a structure The proximal end of the upper arm-bone
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/07/2009 for the course HP 320 taught by Professor Islam during the Spring '08 term at USC.

Page1 / 10

Chapter 1 and 2 - 1/13/2009 HP 320 Biological & Behavioral...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online