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Respiratory system changes as mature

The effects of aging on the respiratory system are similar to those that occur in other organs: maximum function gradually declines. Age-related changes in the lungs include Decreases in peak airflow and gas exchange Decreases in measures of lung function such as vital capacity the maximum amount of air that can be breathed out following a maximum inhalation Weakening of the respiratory muscles Decline in the effectiveness of lung defense mechanisms See also Overview of the Respiratory System. In healthy people, these age-related changes seldom lead to symptoms. These changes contribute somewhat to an older person's reduced ability to do vigorous exercise, especially intense aerobic exercise, such as running, biking, and mountain climbing.
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Apnea of Prematurity

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Development of the Respiratory System | Boundless Anatomy and Physiology

All experiments were carried out under natural conditions. Sun plants had higher respiration, activity of the alternative pathway and carbohydrates content compared to the shade plants. Additional experiments were performed in order to study effects of darkening as well as evolution of respiration and carbohydrates concentrations in leaves of A. Darkening led to a decline in total respiration in all types of plants investigated. On the other hand, darkness led to a twofold decrease in the activity of the alternative pathway in the leaves of the sun plants. Content of soluble carbohydrates in the darkness did not change in the leaves of the shade plants while significantly decreased in the leaves of the sun plants. Total respiration in the mature leaves of the shade plants studied did not change significantly during the day.
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How lungs develop after birth

One is to get oxygen from the air into the body. The other is to remove carbon dioxide from the body. Your body needs oxygen to work properly. Carbon dioxide is a gas the body produces when it uses oxygen.
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Many different diseases can cause long-term damage to the nose or nasopharynx and result in clinical disease. The severity of these infections varies greatly between cats, but in some cases especially with FHV infection the viral infection may do permanent damage to the delicate mucosal lining of the nasal cavities and can also damage the underlying bone. This may result in permanent changes that leave the nasal cavity susceptible to long-term recurrent secondary bacterial infection.
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