PPT-Physiology of the Respiratory system

Lecture 10 Dr Shaimaa Munther Physiology of the Respiratory system Overview Respiration includes two processes External respiration the absorption of O2 and removal of CO2 from the body as a whole. and . Nursing Diagnosis of Chronic Broncitis. Function of Respiratory System. Gas Exchange. . a. External respiration. . b. Internal respiration. . c. Cellular respiration. Ventilation. Blood Reservoir. Robert Padera, M.D., Ph.D.. HBTM. 235. September 21, 2015. rpadera@partners.org. Goals. To teach you everything something about respiratory physiology and pathology. To set the stage for lecture on lung transplantation. and Disorders. Gas Exchange. Gas exchange occurs in the alveoli due to the difference in the partial pressures of oxygen and carbon dioxide in the capillary blood and the alveoli.. Since the concentration of oxygen is greater in the alveoli, it diffuses into the capillary blood.. Inhalation. Nasal cavity. Hairs: filter air. Mucus: filters & moistens. Blood vessels: warm air. • . Pharnyx. (throat). • Larynx (voice box)- glottis, epiglottis. • Trachea (wind pipe)- mucus & hairs.. Transports air into the lungs and facilitates the diffusion of oxygen into the blood stream. Receives carbon dioxide from the blood and exhales it. Organs of the Respiratory system. Slide 13.1. Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings. Science 2017-2018. What You Need to Know… . Describe. the functions of the respiratory system. Explain . how oxygen and carbon dioxide are exchanged in the lungs and in tissues. Identify. the pathway of air in and out of the lungs. Widely considered the gold standard for the teaching and learning of respiratory physiology, this fully updated Ninth Edition includes key points for each chapter and multiple-choice review questions and answers with full explanations. Available online via thePoint, animations help to clarify particularly difficult concepts and provide a visual component for use during instruction or review. --NEW Presents rationales for all questions, as well as explanations for each answer choice--Provides 82 essential-to-know, multiple-choice review questions which appear at the end of each chapter--Features an Appendix of important equations--Supports learning through chapter-opening learning objectives and introductory material, as well as Key Concepts summaries at the end of each chapter--Includes online resources such as question bank, animations, and full text for students--Includes animations online--8 in total--via thePoint to illustrate particularly challenging concepts . (. physiological. ) . condition. The. . Netter. . Collection. . of. . Medical. . Illustration. , vol.3, . Respiratory. . Physiology. , 2011.. Boron. , . Boulpaep. , . Medical. . Physiology. 1. R. espiration. 2. . Smell. 3. . Filtration. /defense. 4. . Sound . & speech production. 5. E. liminate . waste. Respiratory System. B. Anatomy of the Respiratory System. 1. Nose/Nasal Cavity. A) . •Gross anatomy is the study of structures that can be seen with the naked eye.. •Microscopic anatomy is the study of structures that require a microscope to be seen. . Physiology is related to the functions of the body and all its parts, including cells, tissues and organs.. Respiration:. . Two integrated processes: external respiration and internal . respiration.. External . respiration. : . exchange of gases between . blood, lungs and . external environment; . gas . diffusion . BACKGROUND-Cellular Respiration. Oxygen . is used by cells. Oxygen is needed to convert glucose to ATP. Carbon dioxide is a waste product. Body cells die if respiration fails. FUNCTIONS. Supplies . body with oxygen and removes carbon dioxide. Living cells need energy for maintenance, growth, defense & replication. Human cells obtain that energy through aerobic mechanisms that require oxygen & produce carbon dioxide.. Humans respiratory exchange surfaces are confined to the inside of the lungs (in a warm, moist, protected environment) under these conditions, diffusion can occur between the air and blood.. By. Dr.. K. . Usha. Rani . DNR. College . Respiratory system. . The avian respiratory system is different from that of other vertebrates. Birds having relatively small lungs plus nine air sacs that play an important role in respiration .