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  2. File:Snake-anatomy.svg - Wikipedia

    en.wikipedia.org/wiki/File:Snake-anatomy.svg

    This diagram was created with Inkscape, ... Anatomy of a snake. 1 esophagus, 2 trachea, 3 tracheal lungs, 4 rudimentary left lung, 5 right lung, 6 heart, 7 liver, 8 ...

  3. 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 ...

  4. Template:Snake anatomy imagemap - Wikipedia

    en.wikipedia.org/wiki/Template:Snake_anatomy...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us

  5. Snake - Wikipedia

    en.wikipedia.org/wiki/Snake

    The cardiovascular system of snakes is unique for the presence of a renal portal system in which the blood from the snake's tail passes through the kidneys before returning to the heart. [79] The circulatory system of a snake is basically like those of any other vertebrae. However, snakes do not regulate internally the temperature of their blood.

  6. 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]

  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. Cloaca - Wikipedia

    en.wikipedia.org/wiki/Cloaca

    Cloaca of a red-tailed hawk. A cloaca (/ k l oʊ ˈ eɪ k ə / ⓘ kloh-AY-kə), pl.: cloacae (/ k l oʊ ˈ eɪ s i / kloh-AY-see or / k l oʊ ˈ eɪ k i / kloh-AY-kee), or vent, is the rear orifice that serves as the only opening for the digestive (), reproductive, and urinary tracts (if present) of many vertebrate animals.

  9. Pneumostome - Wikipedia

    en.wikipedia.org/wiki/Pneumostome

    The pneumostome or breathing pore is a respiratory opening of the external body anatomy of an air-breathing land slug or land snail. It is a part of the respiratory system of gastropods. It is an opening in the right side of the mantle of a stylommatophoran snail or slug.