Methylxanthines Yet another type of medication used to improve respiratory function is Methylxanthines. Some examples of these include Theophylline. These types of agents work similarly to bronchodilators which open the airway passage, in part by relaxing the bronchial or smooth muscles in the air passage ways. They also help promote greater circulation and engage the central nervous system so it can more actively work to provide oxygen throughout the body. Because

Structure and Function of the Respiratory System Case Forty-five-year-old Brad has, ever since the age of 20, been working in the mines in the post of coal cutter. He is happy with his job as he earns a good wage and his father also worked in the very same mine. Akin to several co-workers of his, he suffers from chronic cough. However, Brad has neglected going for yearly health checks as is

Respiratory System: High Elevations and the Blood Why do people experience shortness of breath at high altitudes? Why does tendency clear off after several days? Humans experience two main types of environmental stresses at high altitudes. First, they experience rapid dehydration as a result of the strong winds and low humidity; and secondly, they could have shortness of breath as a direct result of the low air pressure (Boga, 1997). The estimated

Fishes to Frogs: Respiratory Adaptation Respiration Evolution: Fishes to Frogs The energy needed to sustain life depends on the reduction of oxygen during glycolysis, thereby producing ATP, water, and carbon dioxide. As multicellular organisms began to evolve and grow in size, the ability of the inner-most cells to receive enough oxygen to carry out cellular respiration was compromised. The absorption of oxygen through the outer cellular layers, called cutaneous respiration, evolved

Human Respiratory System The drive to breathe is involuntary and generally automatic, although one can change breathing patterns, and they change when we sleep or are doing different activities. The lungs and respiratory system function to move air 24/7/365 because the body cannot 'store' oxygen that it needs for cellular respiration and energy production. Thus air is constantly flowing in and out of the lungs (Healthline Editorial Team). Respiration, in terms of

Evolution of Respiratory Organ System Respiratory system functions in providing oxygen into cells and transferring the remains of metabolism. The basic respiratory system happens in two main ways: internal and external respiratory system. In internal respiration, organism experience gaseous exchange through the cellular surface, while in the external respiration, every organism has developed typical organs to carry out the process, like fetal membranes, skin surface, and lungs (Campbell, 2001). Early organism (amoeba)