Bear and bigcats anatomy

[brotherbear]

(12-04-2016, 09:01 PM)parvez Wrote:

*This image is copyright of its original author

The bear's skeleton looks more like that of a dog. That is why they are related to the dogs, wolves, and foxes. The only difference between the bones of a bear and a dog is the weight of the bones. Also, the grizzly's teeth and skull are not as adept as a dog's for biting and shearing. Nonetheless, the grizzly's raw strength more than makes up for biting and shearing. Although bears have short limbs, the sheer strength of their bones allows for great support.

The skeletal system allows the animal to be supported in sudden changes of support in different environments. Examples are in water when different organism's bodies are made lighter (archimedes force). Another example is in land and air when the body is not supported as if in the water. 

As shown in the diagram above, the grizzly bear's skeletal structure is a like to that of a dog or wolf, in where the snout is narrow and their neck is long. Though this is the case, the grizzly bear walks more like a human.  Usually mammals walk on their toes (digitigrade) which helps them walk fast. But the grizzly bear puts it foot sole down on the ground just like a human.

The grizzly's hands are big enough to used for catching animals, attacking predators and protecting itself. The legs are also very short but strong enough to support the big body that it has. Both the hands and feet of the grizzly have phalanges which just like many bones of the grizzly, can be found in human anatomy. 

Like most living things, a skeleton is a vital system. The skeletal system's process is to do three things, protect, support and provide movement for the body. 

• Protect
  

The bone tissue is a both hard and flexible material which helps protect the body from impacts. The bones also act as a cage for the grizzly's delicate organs which help to keep them securely in place.

• Support
  

The skeleton acts as a strong frame for the body which is good for supporting organs, blood etc. inside the body. The skeleton gives shape to the body and supports the soft tissue which enables us to stand up and move. 

• Move
  

The skeleton helps in movement as it is made out of strong and rigid material. The body can rely on this skeleton to keep muscles on it to move the body. The skeletal system includes things called 'joints'. 

Source: http://nrmrsgren.weebly.com/m---movement.html
http://daskellah.weebly.com/skeletal-and-muscular-systems.html

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