Examples of Animals with tracheal respiration

The living beings they need oxygen to support their metabolism. As a product of it, they generate a toxic sustance: carbon dioxide. The process by which oxygen is obtained and carbon dioxide is discarded is called breathing.

The breath best known to us is the pulmonary: both us and our animals closest (dogs, cats, birds, horses, etc.) we breathe through a respiratory system centered on the lungs. However, there are other ways of breathing.

The tracheal system it is a type of respiratory system centered on the tracheae. It is made up of a network of empty tubes. These tubes are smaller in diameter as they penetrate the tissues. Gases can move through this network of tubes either through a passive system (diffusion) or through an active system (ventilation).

The particularity of the tracheal system is that the tubes reach such a small diameter (few micrometers) that they provide to oxygen cells directly, without involving the circulatory system (as occurs in respiration pulmonary).

Animals that have tracheas are:

Examples of tracheal breathing

1. Arachnids (arthropods). Besides spiders, squigs, mites, and scorpions are also arachnids. They may have one of the following organs, or both at the same time:

1. Myriapods (arthropods). They are centipedes, millipedes, pauropods and symphyla. There are more than 16,000 species of myriapods. Its tracheal system has a structure similar to that of insects.
2. Insects (arthropods). The tracheal system of insects is made up of:

1. Onychophores. They are also called velvety worms. They inhabit tropical areas and prefer humid terrestrial environments. The spiracles in your tracheal system have a fixed diameter. Each tracheal unit is small and supplies oxygen only to nearby tissues.

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