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- How does the body defenditself from microorganismsand other harmful substancesthat enter the airway duringthe breathing process?How does oxygen get from the air in your lungs into your bloodstream?How is carbon dioxidereleased by cellularrespiration transported fromthe tissues to be eliminatedthrough the lungs?
- Watch this video (http://openstaxcollege.org/l/oxyblood) to see the transport of oxygen from the lungs tothe tissues. Why is oxygenated blood bright red, whereasdeoxygenated blood tends to be more of a purple color?Trace the pathway of oxygen using the “Bunch of Grapes “model. Notethat air moves from the nose (nasal cavity), and mouth (oral cavity) to thetrachea, bronchi, bronchioles, and then into the alveoli (air sacs). Theair we breathe carries the gas oxygen. When we breathe, the oxygengoes to the lungsDescribe the process of Lloading of Oxygen in the Lungs?
- What is the stage ofcellular respiration duringwhich carbon dioxide isliberated?*Respiratory SystemThe respiratory system functions in the exchange of gases between the external and internalenvironments. Major parts of the system include the nasal cavity, larynx, trachea, bronchi, and pulmonaryalveoli. Some regions of the respiratory system are specialized for the conduction of gases and other areasfunction primarily in the exchange of gases. Filtration mechanisms exist in both regions. The function ofeach part of the respiratory system is reflected in the structure of its wall: the type of epithelium and itsapical modifications, intraepithelial and subepithelial glands, cartilaginous rings and plates, smoothmuscle and elastic tissue, and the relationship of capillary endothelium to alveolar epithelium.Study the Respiratory system in Slide Box and Respiratory system under EM. QUESTION: What does the EM demonstrate regarding the air-blood barrier?*Respiratory SystemThe respiratory system functions in the exchange of gases between the external and internalenvironments. Major parts of the system include the nasal cavity, larynx, trachea, bronchi, and pulmonaryalveoli. Some regions of the respiratory system are specialized for the conduction of gases and other areasfunction primarily in the exchange of gases. Filtration mechanisms exist in both regions. The function ofeach part of the respiratory system is reflected in the structure of its wall: the type of epithelium and itsapical modifications, intraepithelial and subepithelial glands, cartilaginous rings and plates, smoothmuscle and elastic tissue, and the relationship of capillary endothelium to alveolar epithelium.Study the Respiratory system in Slide Box and Respiratory system under EM. QUESTION: What is the distinctive structural component of the wall of the trachea?
- How is oxygen and carbon dioxide transported in human beings?Jenny wanted to do some underwater exploration. Instead of buying expensive SCUBA equipment, she obtained a long hose andan innertube. She attached one end of the hose to the innertube sothat the end was always out of the water, and she inserted the otherend of the hose in her mouth and went diving. What happened toher alveolar ventilation and why? How can she compensate for thischange? How does diving affect lung compliance and the work ofventilation?What changes would you expect to occur in the levels ofblood oxygen and carbon dioxide in a patient who breathesrapidly and deeply for a prolonged time?