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15 kwi 2018 · One of the main homeostatic functions of the respiratory system is the gas exchange that occurs in the alveoli in the lungs. As blood passes through the tiny capillaries in the alveolar sacs, changing pressure gradients allow oxygen and carbon dioxide to diffuse in and out of the blood.
Here, we review the origin of oxygen homeostasis, a primal selection factor for all respiratory systems, which in turn function as gatekeepers of the cascade. Within an organism's lifespan, the respiratory apparatus adapts in various ways to upregulate oxygen uptake in hypoxia and restrict uptake in hyperoxia.
All eukaryotic organisms must maintain oxygen homeostasis. A number of defense and regulatory mechanisms have been developed to protect the cell from low as well as high oxygen levels. In this...
This Review discusses the key mechanisms through which the local immune system maintains immunological homeostasis in the lung while preserving the integrity of the gas-exchange surfaces.
24 mar 2022 · Blood loaded up with oxygen-rich red blood cells travels to the left side of the heart through the pulmonary veins. The heart then pumps the oxygenated blood to the rest of the body, where it moves from your blood vessels to your cells.
5 paź 2018 · Each anatomical component of the pulmonary system supports its primary function, gas exchange. The human lungs are responsible for extraction of oxygen, elimination of waste products of metabolism, maintenance of pH balance, and host defense against the outside environment.
24 mar 2022 · The circulatory system helps deliver nutrients and oxygen from the lungs to tissues and organs throughout the body. It also helps remove carbon dioxide and waste products. Other body systems that work with the respiratory system include the nervous system, lymphatic system , and immune system.
