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What is respiratory system?

What is respiratory system?

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Answers (2)

2 months ago
The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide. The primary organs of the respiratory system are lungs, which carry out this exchange of gases as we breathe.
The respiratory system exchanges oxygen for the carbon dioxide in the blood. This system is, however, easily plagued by any illness or environment that may impair the ability for the alveoli* to do their job. Examples of this are smoking and inhaling fine sawdust; both of which coat the alveoli and less the exchange rate of O2 for CO2. There are also other illnesses of the respiratory system such as cystic fibrosis which causes a thick mucous to build up in the lungs and can actually cause the sufferer to die of asphyxiation*.
Alveoli- Small sacks inside your lungs that have a large amount of very thin capillaries (super thin blood vessels) that are where the CO2 and O2 exchange.
Asphyxiation- Death due to lack of oxygen.
Dgentle Hero
2 months ago
The respiratory system (also
respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in
animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history. In land animals the respiratory surface is internalized as linings of the lungs. Gas exchange in the lungs occurs in millions of small air sacs called alveoli in mammals and reptiles, but atria in birds. These microscopic air sacs have a very rich blood supply, thus bringing the air into close contact with the blood. These air sacs communicate with the external environment via a system of airways, or hollow tubes, of which the largest is the trachea , which branches in the middle of the chest into the two main bronchi. These enter the lungs where they branch into progressively narrower secondary and tertiary bronchi that branch into numerous smaller tubes, the bronchioles . In
birds the bronchioles are termed
parabronchi . It is the bronchioles, or parabronchi that generally open into the microscopic alveoli in mammals and atria in birds. Air has to be pumped from the environment into the alveoli or atria by the process of
breathing which involves the muscles of respiration.
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