1. Describe the dynamics of forced breathing (exercise) 2. Describe the effects of CO2 and O2...

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Medical Sciences

1. Describe the dynamics of forced breathing (exercise)
2. Describe the effects of CO₂ and O₂ andpH on breathing.
3. What is ventilation-perfusion coupling?
4. Describe how CO₂ and O₂ are transportedin blood. When describing carbon dioxide transport use theequations to describe the process at the lungs and at thetissues.
5. Describe using pressure gradients the diffusion ofrespiratory gases in internal respiration and externalrespiration.
6. Draw the hemoglobin-saturation curves (on the same graph)demonstrating non-exercise vs. exercise conditions.

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3.8 Ratings (387 Votes)

1 During normal inspiration the diaphragm and external intercostal muscles contract causing the rib cage to expand and move outward and expanding the thoracic cavity and lung volume Forced or labored breathing involves the sternocleidomastoid and scalene muscles to lift the upper rib cage even more than in normal breathing By lifting the upper portion of the rib cage the action of the intercostals is magnified during forced exhalation the internal intercostals and abdominal muscles may be involved in forcing air out of the lungs 2Respiration of See Answer

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