digital anatomical Atlas bioterio
Under this name is to describe and display material of the dissection of the guinea pig, rabbit and rat. Comparing systems and adaptations. Describing information and techniques anatomical dissection.
Not only will our physiological functions of the organs and systems. Anger work is mostly aimed at the physical anatomy of these animals.
Before delving into the anatomy of these animals will see some features why rodents and lagomorphs are defined as such.
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Lagomorpha: The order Lagomorpha is geologically old, as they have found fossilized bones and teeth in deposits of the Oligocene (65 million years ago, in the Cenozoic Era).
were formerly classified as rodents in the suborder Duplicidentata, until in 1912 it recognized the Order within the Subclass Lagomorpha eutherians.
includes rabbits, hares (Leporidae) and picas (Ocotónidos). Ntran are found worldwide, either as native or introduced species. There are 78 species.
These two groups differ mainly by the fact that they have two pairs of upper front teeth, continuous growth, instead of a pair, such as rodents. Most members of this order are distinguished also by their long ears and well-developed hind legs that allow them to run fast. Also associated with herbivorous habits.
Rabbit (Oryctolagus cuniculus) American Pica ( Ochotona princeps )
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Rodents: The first representatives of the order Rodentia is estimated that could have appeared in the late Cretaceous (100 million years).
The most common rodents are mice, rats, squirrels, Tamia, porcupines, beavers, hamsters, gerbils and guinea pigs. Most inhabit every continent except Antarctica, and today there are approximately 2,280 species, 42% of all mammals.
incisors have a couple of sharp, ongoing growth they use for gnawing, boring food, and bite predators. Many feed on seeds and plants. Some have more varied diets.
Rat (Rattus norvegicus ) Mouse (Mus musculus) Hamster (Mesocricetus auratus ) guinea pig (Cavia porcellus )
After seeing some general . Let's get into the anatomical aspects of this s animals.
Let's start with the dissection.
Place the animal supine. Influence of the chin to the anus avoiding external genitalia. Cut the skin from the medial aspects of the members. separate the skin from muscle pulling hard or cutting the connective tissue that unites them.
throughput of the sternum incise the ventral musculature, at the height of the xiphoid cartilage.
In the rabbit incident from the navel and cut caudal to cranial to the xiphoid cartilage.
Cut the rib and introduce a clip to flow and we cut medial to the abdominal cavity, using this as a guide to not damage any organ.
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