Potential long answer 2

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Simon Fraser University
Biological Sciences
BISC 101
Derek Bingham

Oxygen is carried in the lungs and body by red blood cells. By training for 8 weeks in high altitude deficiency of o2 increases the o2 carrying capacity in the body which will enhance the athletes’ performance and increase the production of RBC. During berthing the atmospheric o2 will make its way thru the athlete’s quadriceps. Between breathing the intrapulmonary pressure (within the alveoli) equals the atmospheric pressure of the sea level. During inspiration, volume of thoracic cavity increase causing negative pressure. Since air moves from high to low pressure, air flows in the lungs. Air that contains o2 will enter the nose thru the nostrils. Then the air will make it through the Pharynx to the trachea. As soon as the epiglottis opens air passes to the larynx making its way to the trachea which divides into primary bronchus and carries air into the lungs. Pulmonary gas exchange is the process where CO2 and O2 exchange between the air in the alveoli and blood. Pulmonary arteries carry blood that is low in O2 to the heart. Then, branches into repeating network of pulmonary capillaries, which surround each alveolus. Gas exchange happens in the respiratory membrane formed by alveolar and capillaries wall. Most of O
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