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  2. Fish gill - Wikipedia

    en.wikipedia.org/wiki/Fish_gill

    [1] [2] Each filament contains a capillary network that provides a large surface area for exchanging oxygen and carbon dioxide. Fish exchange gases by pulling oxygen-rich water through their mouths and pumping it over their gills. Within the gill filaments, capillary blood flows in the opposite direction to the water, causing counter-current ...

  3. Respiratory system of gastropods - Wikipedia

    en.wikipedia.org/wiki/Respiratory_system_of...

    The pulmonates have lost their gills [1] and adapted the mantle cavity into a pallial lung. The lung has a single opening on the right side, called the pneumostome, which either remains permanently open, or opens and closes as the animal breathes. The roof of the lung is highly vascularised, and it is through this surface that gas exchange occurs.

  4. Siphon (mollusc) - Wikipedia

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

    The water is circulated by the action of the gills. Usually water enters the mantle cavity through the inhalant siphon, moves over the gills, and leaves through the exhalant siphon. The water current is utilized for respiration, but also for filter feeding, excretion, and reproduction.

  5. Gill - Wikipedia

    en.wikipedia.org/wiki/Gill

    The gills are composed of comb-like filaments, the gill lamellae, which help increase their surface area for oxygen exchange. [5] When a fish breathes, it draws in a mouthful of water at regular intervals. Then it draws the sides of its throat together, forcing the water through the gill openings, so it passes over the gills to the outside.

  6. Aquatic respiration - Wikipedia

    en.wikipedia.org/wiki/Aquatic_respiration

    Each gill arch has two rows (hemibranchs) of gill filaments; Each gill filament has many lamellae; In osteichthyes, the gills contain 4 gill arches on each side of the head, two on each side for chondrichthyes or seven gill baskets on each side of the fish's head in lampreys. In fish, the long bony cover for the gill (the operculum) can be used ...

  7. Fish physiology - Wikipedia

    en.wikipedia.org/wiki/Fish_physiology

    The gills are composed of comb-like filaments, the gill lamellae, which help increase their surface area for oxygen exchange. [10] When a fish breathes, it draws in a mouthful of water at regular intervals. Then it draws the sides of its throat together, forcing the water through the gill openings, so that it passes over the gills to the outside.

  8. Today's Wordle Hint, Answer for #1252 on Friday, November 22 ...

    www.aol.com/todays-wordle-hint-answer-1252...

    If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1252 ahead. Let's start with a few hints.

  9. Gastropoda - Wikipedia

    en.wikipedia.org/wiki/Gastropoda

    This class comprises snails and slugs from saltwater, freshwater, and from the land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, land snails and slugs. The class Gastropoda is a diverse and highly successful class of mollusks within the phylum Mollusca.