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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 .
English: Frog dissection during practical work at Faculty of Biology, Moscow State University. ... Manual white balance: Focal length in 35 mm film: 27 mm: Scene ...
Most schools provide students with cadavers for investigation by dissection, aided by dissection manuals, as well as cadaveric atlases (e.g. Netter's, Rohen's). Working intimately with a cadaver during a gross anatomy course has been shown to capture the essence of the patient-provider relationship. [3]
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]
Prior to dissection for educational purposes, chloroform was administered to this common sand frog to induce anesthesia and death. The extent to which animal testing causes pain and suffering, and the capacity of animals to experience and comprehend them, is the subject of much debate. [166] [167]
Cervical dislocation is a common method of euthanising laboratory mice. Cervical dislocation is a common method of animal euthanasia.It refers to a technique used in physical euthanasia of small animals by applying pressure to the neck and dislocating the spinal column from the skull or brain. [1]
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 ...
The African clawed frog (Xenopus laevis), also known as simply xenopus, African clawed toad, African claw-toed frog or the platanna) is a species of African aquatic frog of the family Pipidae. Its name is derived from the short black claws on its feet. The word Xenopus means 'strange foot' and laevis means 'smooth'.