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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. 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.

  4. 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]

  5. 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]

  6. Pain in amphibians - Wikipedia

    en.wikipedia.org/wiki/Pain_in_amphibians

    Dissection of a frog. Pain is an aversive sensation and feeling associated with actual, or potential, tissue damage. [1] It is widely accepted by a broad spectrum of scientists and philosophers that non-human animals can perceive pain, including pain in amphibians.

  7. 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.

  8. 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.

  9. Prosection - Wikipedia

    en.wikipedia.org/wiki/Prosection

    A prosection is the dissection of a cadaver (human or animal) or part of a cadaver by an experienced anatomist in order to demonstrate for students anatomic structure. [1] In a dissection, students learn by doing; in a prosection, students learn by either observing a dissection being performed by an experienced anatomist or examining a specimen that has already been dissected by an experienced ...