When.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

    Air enters the respiratory systems of insects through a series of external openings called spiracles. These external openings, which act as muscular valves in some insects, lead to the internal respiratory system, a densely networked array of tubes called tracheae. This network of transverse and longitudinal tracheae equalizes pressure ...

  3. Spiracle (arthropods) - Wikipedia

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

    [4] The closer muscle is controlled by the central nervous system, but can also react to localized chemical stimuli. Several aquatic insects have similar or alternative closing methods to prevent water from entering the trachea. The timing and duration of spiracle closures can affect the respiratory rates of the organism. [5]

  4. 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 ...

  5. Butterfly valve - Wikipedia

    en.wikipedia.org/wiki/Butterfly_valve

    Butterfly valve with actuator electric valve - An electrically actuated butterfly valve is a quarter-turn valve controlled by an electric motor. It offers fast and precise flow regulation, remote operation, and versatility for various applications.

  6. Endobronchial valve - Wikipedia

    en.wikipedia.org/wiki/Endobronchial_valve

    Endobronchial valve. An endobronchial valve (EBV) is a small, one-way valve, which may be implanted in an airway feeding the lung or part of lung. The valve allows air to be breathed out of the section of lung supplied, and prevents air from being breathed in. This leaves the rest of the lung to expand more normally and avoid air-trapping.

  7. Respiratory system - Wikipedia

    en.wikipedia.org/wiki/Respiratory_system

    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 ...

  8. 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.

  9. Siphon (insect anatomy) - Wikipedia

    en.wikipedia.org/wiki/Siphon_(insect_anatomy)

    A siphon is a tubular organ of the respiratory system of some insects that spend a significant amount of their time underwater, that serves as a breathing tube. The larvae of several kinds of insects, including mosquitoes , tabanid flies , and Belostomatidae , live in the water and breathe through a siphon.