PPT-Ventilation - moves air from the atmosphere to and from alveoli in the lungs.

Functions of Respiratory System Provides enormous Surface area for gas exchange between alveoli and circulating blood Helps regulate pH of body fluids Permits vocal sounds External nares. Essentials of Exercise Physiology. Respiration. External respiration:. . ventilation and exchange of gasses in the lungs (pulmonary function).. Internal respiration. : . ventilation and exchange of gasses in the tissues (pulmonary function).. How do oxygen and carbon dioxide move into and out of the lungs and blood?. Starter: . Sulking! Put out your bottom lip as far as you can. Show your neighbour. How could you describe the blood vessels you can see. . and Pulmonary Ventilation. Inspiration . and Expiration. Structure. of . the. . R. espiratory. and . System. N. ose. .  . hairs. and mucus . filter. air. . A. ir . is. . warmed. Pharynx. . 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. . The . respiratory. system is the group of organs that . takes. in oxygen and gets . rid. of carbon dioxide. Respiration. is another name for . breathing. Respiration is the . transport. of oxygen from . organs are involved in the Respiratory system (breathing). Mouth. Trachea. Bronchus. Alveoli. Diaphragm. Rib cage. Lungs. Bronchioles. Oesophagus. Heart. Nose. Stomach. Ciliated epithelial cells. Larynx. 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. . 4 distinct events. Pulmonary ventilation. : air is moved in and out of the lungs. External respiration. : gas exchange between blood and alveoli. Respiratory gas transport. : CV system transports oxygen and carbon dioxide between lungs & tissues (discussed in Blood chapter). 6.4 Gas exchange. By . Chris Paine. https. ://. bioknowledgy.weebly.com. /. . Two processes maintain the concentration gradients between the blood and the alveolar air to ensure that diffusion of both oxygen and carbon dioxide can occur: firstly circulation of the blood brings a constant supply of high carbon dioxide, deoxygenated blood to the alveoli. Secondly the diaphragm . 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.. 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. 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 . The Conducting Zone. Nose. Only external visible part of the respiratory system. Air enters the nose by passing through the nostrils. The interior of the nose consists of the nasal cavity which is divided by the nasal septum.