PPT-Ventilation - moves air to and from alveoli

Functions of Respiratory System Gas exchange between air and circulating blood Defend respiratory system from pathogens Help homeostasis of blood volume pH and pressure Permit . Dead Space. dead space. is the volume of air which is inhaled that does not take part in the gas exchange, either because it (1) remains in the conducting airways, or (2) reaches alveoli that are not perfused or poorly perfused. In other words, not all the air in each breath is available for the exchange of oxygen and carbon dioxide.. exchange by diffusion between air in the . lungs and blood in capillaries.. What can you tell me about alveoli?. Alveoli. The tiny air sacs at the end of each bronchiole are specially designed for gas exchange. . Contents. Introduction. Mechanical Ventilation. Natural Ventilation. Ground Coupled Heat Exchangers. French Regulations. 2. Introduction. 3. Importance. Assures quality of air:. Removes pollutants, excess moisture. Put them in the correct order . Terminal bronchioles . Secondary bronchi. Alveoli, alveolar ducts and alveolar air sacs.. Right and left primary bronchi. Tertiary bronchi. Trachea. Nose . The structure of the thorax. PowerPoint. ®. Lecture Slide Presentation by . Robert J. Sullivan. , Marist College. EXCHANGE OF GASES. RESPIRATORY SYSTEM. The human respiratory system allows one to obtain oxygen, eliminate carbon dioxide. . 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.. . Biology Department . 1. 2. RESPIRATORY ORGANS . The respiratory system . starts. with a pair of . external nostrils . The . nostrils open into . nasal passage . that is situated above the . buccal cavity. What is gas exchange?. The process all organisms undergo in which they absorb one gas from the environment and release a different one. . In human gas exchange… . -absorb oxygen for cell respiration and release carbon dioxide as waste. “Air Sacs”. Resemble bunches of grapes. Make up bulk of lungs. Respiratory Zone. Includes respiratory bronchioles, alveolar ducts, alveolar sacs, and alveoli. Only places where gas exchange occurs. Air Cooling. Shades. Natural Ventilation. Also called passive ventilation. Uses natural outside air movement/pressure differences to cool/ventilate the building. Provide and move fresh air without fans. Air flow through Buildings. Factors Affecting Air flow through Buildings . Ventilation is the replacement of used inside air by . outside air . It has three major functions. Supply of fresh air. Implementing Demand Controlled Ventilation to Meet ASHRAE Standard 62.1 - 2010 By Klas C. Haglid, P.E., R.A., CEM 1 Klas C. Haglid, P.E., R.A., CEM - Bio ASHRAE Distinguished Service Award 2011 ASHRAE Handbook, HVAC Applications and Management, Chapter 37,– Author, Klas C. Haglid P.E. R.A. Chapter 22 content not on Wednesday lecture test. Goals:. -Describe the airway divisions that lead air to the alveoli where most gas exchange actually occurs.. -Describe the structure and anatomy of the lower airway anatomy as it applies to health and disease. Lungs & Air passages. Responsible for taking in oxygen and removing carbon dioxide (CO. 2. ). 4 – 6 minute supply of oxygen. Includes: nose, pharynx, larynx, trachea, bronchi, alveoli, and lungs.