Search results
Results from the WOW.Com Content Network
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 ...
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]
The character Michigan J. Frog is twice discovered inside the cornerstone of a razed building. [18] A reference to the phenomenon occurs in Dante Gabriel Rossetti's poem "Jenny", which mentions a "toad within a stone / Seated while time crumbles on". [7]
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]
position during dissection Rubber gloves: Disposable gloves are used to prevent contamination of evidence and to keep the wearer safe. Goggles: Goggles are worn to protect foreign objects from getting in the eyes. Jackets, aprons, etc. to protect against infection Autopsy saws: to cut tough structures like bones: Blades
Warty frog species tend to be called toads, but the distinction between frogs and toads is informal, not from taxonomy or evolutionary history. An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limbs folded underneath, and no tail (the tail of tailed frogs is an extension of the male cloaca