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The sliding filament theory explains the mechanism of muscle contraction based on muscle proteins that slide past each other to generate movement. [1] According to the sliding filament theory, the myosin ( thick filaments ) of muscle fibers slide past the actin ( thin filaments ) during muscle contraction, while the two groups of filaments ...
Rana (derived from Latin rana, meaning 'frog') is a genus of frogs commonly known as the Holarctic true frogs, pond frogs or brown frogs. Members of this genus are found through much of Eurasia and western North America .
The frog's legs twitched as the discharge happened. [6] Galvani found that he could make the prepared leg of a frog (see the Construction section) twitch by connecting a metal circuit from a nerve to a muscle, thus inventing the first frog galvanoscope. [7] Galvani published these results in 1791 in De viribus electricitatis. [8]
Hyla is a genus of frogs in the tree frog family Hylidae. As traditionally defined, it was a wastebasket genus with more than 300 species found in Europe, Asia, Africa, and across the Americas. After a major revision of the family, most of these have been moved to other genera so that Hyla now only contains 17 extant (living) species from ...
The human nervous system, without labels Source TE-Nervous_system_diagram.svg. Date 20:47, 12 October 2011 (UTC) Author The Emirr. Permission (Reusing this file) See below. Other versions Labeled: TE-Nervous_system_diagram.svg
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Restructured the image internals by adding layers, changing groupings, and adding meaningful ids and labels so that the image is easier to manipulate programmatically. Also made the labels text elements and gave them ids (it might be possible to generate : 10:17, 1 October 2007: 436 × 842 (764 KB) LadyofHats: some changes asked in FP discussion
Of the three orders of amphibians, Anura (frogs and toads) and Urodela (salamanders) have representative species with webbed feet. Frogs that live in aquatic environments, like the common frog (Rana temporaria), have webbed feet. Salamanders in arboreal and cave environments also have webbed feet, but in most species, this morphological change ...