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  2. Frog - Wikipedia

    en.wikipedia.org/wiki/Frog

    Frogs are used for dissections in high school and university anatomy classes, often first being injected with coloured substances to enhance contrasts among the biological systems. This practice is declining due to animal welfare concerns, and "digital frogs" are now available for virtual dissection. [222]

  3. Dissection - Wikipedia

    en.wikipedia.org/wiki/Dissection

    A key principle in the dissection of human cadavers (sometimes called androtomy) is the prevention of human disease to the dissector.Prevention of transmission includes the wearing of protective gear, ensuring the environment is clean, dissection technique [2] and pre-dissection tests to specimens for the presence of HIV and hepatitis viruses. [3]

  4. Animal testing on frogs - Wikipedia

    en.wikipedia.org/wiki/Animal_testing_on_frogs

    The African clawed frog or platanna, Xenopus laevis, was first widely used in laboratories in pregnancy assays in the first half of the 20th century.When human chorionic gonadotropin, a hormone found in substantial quantities in the urine of pregnant women, is injected into a female X. laevis, it induces them to lay eggs.

  5. File:Frog dissection, 5.JPG - Wikipedia

    en.wikipedia.org/wiki/File:Frog_dissection,_5.JPG

    This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

  6. Vocal sac - Wikipedia

    en.wikipedia.org/wiki/Vocal_sac

    A fully distended vocal sac in an Australian red-eyed tree frog (Litoria chloris) Italian tree frog (Hyla intermedia) with an inflated vocal sac. The vocal sac is the flexible membrane of skin possessed by most male frogs and toads. The purpose of the vocal sac is usually as an amplification of their mating or advertisement call.

  7. American bullfrog - Wikipedia

    en.wikipedia.org/wiki/American_bullfrog

    The frogs are large, have powerful leaps, and inevitably escape after which they may wreak havoc among the native frog population. [49] Countries that export bullfrog legs include the Netherlands, Belgium, Mexico, Bangladesh, Japan, China, Taiwan, and Indonesia. Most of these frogs are caught from the wild, but some are captive-reared.

  8. Marcello Malpighi - Wikipedia

    en.wikipedia.org/wiki/Marcello_Malpighi

    Malpighi's frog dissection in 1661, proved to be a suitable size that could be magnified to display the capillary network not seen in the larger animals. [16] In discovering and observing the capillaries in the frog's lungs, Malpighi studied the movement of the blood in a contained system. [15]

  9. Fetal pig - Wikipedia

    en.wikipedia.org/wiki/Fetal_pig

    Along with frogs and earthworms, fetal pigs are among the most common animals used in classroom dissection. There are several reasons for this, including that pigs, like humans, are mammals. Shared traits include common hair, mammary glands, live birth, similar organ systems, metabolic levels, and basic body form.

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