enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Respiratory system of insects - Wikipedia

    en.wikipedia.org/wiki/Respiratory_system_of_insects

    Development of the tracheal system in Drosophila melanogaster. An insect's respiratory system is the system with which it introduces respiratory gases to its interior and performs gas exchange. Air enters the respiratory systems of insects through a series of external openings called spiracles.

  3. Tracheole - Wikipedia

    en.wikipedia.org/wiki/Tracheole

    Tracheal system of the mite Stigmaeus humilis (C. L. Koch). Anthonie Cornelis Oudemans, 1913. Tracheole (trā'kē-ōl') is a fine respiratory tube of the trachea of an insect or a spider, part of the respiratory system. Tracheoles are about 1 μm in diameter, and they convey oxygen to cells while providing a means for carbon dioxide to escape.

  4. Spiracle (arthropods) - Wikipedia

    en.wikipedia.org/wiki/Spiracle_(arthropods)

    A spiracle or stigma is the opening in the exoskeletons of insects, myriapods, velvet worms and many arachnids to allow air to enter the trachea. [1] [2] [3] In the respiratory system of insects, the tracheal tubes primarily deliver oxygen directly into the animals' tissues. In most species the spiracles can be opened and closed in an efficient ...

  5. Trachea - Wikipedia

    en.wikipedia.org/wiki/Trachea

    The tracheal system branches into progressively smaller tubes, here supplying the crop of the cockroach. Scale bar, 2 mm. The word trachea is used to define a very different organ in invertebrates than in vertebrates. Insects have an open respiratory system made up of spiracles, tracheae, and tracheoles to transport metabolic gases to and from ...

  6. Insect physiology - Wikipedia

    en.wikipedia.org/wiki/Insect_physiology

    An insect uses its digestive system to extract nutrients and other substances from the food it consumes. [3]Most of this food is ingested in the form of macromolecules and other complex substances (such as proteins, polysaccharides, fats, and nucleic acids) which must be broken down by catabolic reactions into smaller molecules (i.e. amino acids, simple sugars, etc.) before being used by cells ...

  7. Insect morphology - Wikipedia

    en.wikipedia.org/wiki/Insect_morphology

    Instead, the insect respiratory system uses a system of internal tubes and sacs through which gases either diffuse or are actively pumped, delivering oxygen directly to tissues that need it via their trachea (element 8 in numbered diagram). Since oxygen is delivered directly, the circulatory system is not used to carry oxygen, and is therefore ...

  8. Discontinuous gas exchange - Wikipedia

    en.wikipedia.org/wiki/Discontinuous_gas_exchange

    Independent of cycles of insect ventilation which may be discontinuous, cellular respiration on a whole animal level continues at a constant rate. [1] As O 2 is consumed, its partial pressure decreases within the tracheal system. In contrast, as CO 2 is produced by the cells, it is buffered in the haemolymph rather than being exported to the ...

  9. Book lung - Wikipedia

    en.wikipedia.org/wiki/Book_lung

    In this spider diagram, the position of the book lungs is labelled 1. Spider book lungs (cross section) Internal anatomy of a female spider, book lungs shown in pink A book lung is a type of respiration organ used for atmospheric gas-exchange that is present in many arachnids, such as scorpions and spiders.