Sentences with phrase «human hand bone»

«Discovery of 1.4 million - year - old fossil human hand bone closes human evolution gap.»

Using a high - resolution CT scan — think of it as a 3 - D X-ray — their team documented that human hand bones show increased internal density in response to certain types of stress and repetitive motion, particularly that associated with the manufacture and use of stone tools.

Not exact matches

Some of them were of the bones of the hand, others of coins and keys photographed through the opaque walls of a leather pocket - book, all clearly demonstrating that he had found some strange new rays which had the amazing property of penetrating as opaque an object as the human body and revealing on a photographic plate the skeleton of a living person.

It was created by the Mexican Max Ortiz Catalan, who lives in Sweden, the device becomes an extension of the human body through osseointegration, this means that it connects directly to the bone via a titanium implant, and thanks to the neuronal and muscle binding interfaces a robust and intuitive control of the artificial hand is achieved, this way just by thinking about it is possible to move the limb.

Now, a University of Missouri researcher and her international team of colleagues have found a new hand bone from a human ancestor who roamed the earth in East Africa approximately 1.42 million years ago.

In an analysis of the remarkably complete hands, paleoanthropologist Tracy Kivell of the University of Kent in the United Kingdom found that bones in the wrist were shaped like those in modern humans, suggesting that the palm at the base of the thumb was quite stiff.

The shape of fossil hand bones found in Africa suggests the first toolmakers walked on Earth before humans did

When the team scanned hand bones from four members of A. africanus that lived in South Africa between 2 million and 3 million years ago, they found that the pattern of the trabecular bone was asymmetrical, as in modern humans and Neandertals that use tools frequently (as they also show in their study).

After a fifteen minute exposure the first radiograph of a human being was obtained showing clearly the bones of the hand and the two rings she was wearing.

The research, titled «Human - like hand use in Australopithecus africanus, shows that Australopithecus africanus,» a 3 - 2 million - year - old species from South Africa traditionally considered not to have engaged in habitual tool manufacture, has a human - like trabecular bone pattern in the bones of the thumb and palm (the metacarpals) consistent with forceful opposition of the thumb and fingers typically adopted during toolHuman - like hand use in Australopithecus africanus, shows that Australopithecus africanus,» a 3 - 2 million - year - old species from South Africa traditionally considered not to have engaged in habitual tool manufacture, has a human - like trabecular bone pattern in the bones of the thumb and palm (the metacarpals) consistent with forceful opposition of the thumb and fingers typically adopted during toolhuman - like trabecular bone pattern in the bones of the thumb and palm (the metacarpals) consistent with forceful opposition of the thumb and fingers typically adopted during tool use.

The human hand consists of 27 bones, 28 muscles, 3 major nerves, 2 major arteries, multiple tendons, veins and soft tissue.

Researchers examined the trabeculae of hand bones of humans and chimpanzees.

By studying the hand bones of the Australopithecus africanus, researchers found that these ape - like human ancestors had human - like hands capable of using stone tools.

The skull was discovered along with stone - made hand axes, human teeth and animal bones.

That's why the bone (in A. africanus) has remodeled in response to that more human - like hand use.»

«Modern humans, on the other hand, made lots of different kinds of bone tools that took advantage of the properties of bone, to be ground into specific shapes like points, awls and smoothers,» McPherron added.

This new partial foot from Burtele (this is all that was found, no other post crania, crania or dentition) lacks an arch and two of the bones comprised an abducted toe, that is to say, an opposable toe, like the thumb on a human hand, capable of grasping tree limbs but less efficient than the human foot on the ground.

The hand bones of Stw 573 seem to be like those of modern humans in being relatively unspecialized, having a short palm and fingers compared to modern apes.

I believe human aliveness and creative capacity go hand in hand, and I also know deep down in my bones that creativity is a crucial part of holistic well - being.

By targeting the muscles around the fingers, hands and forearms, you can help center and lock the glenohumeral joint, which is by the way one of the most mobile joints of the human body and it involves articulation between the shoulder blade and upper arm bone, into its ideal position.

«They're horrible,» Says the boy wizard Daniel Radcliffe of the beings who look like humans made of only skin and bone and want to get their hands on Harry.

* Marketing at OCP figured the public would be more willing to accept a robotic police officer if they see he's part human, and can greet you without breaking every bone in your hand!

If this appears ghoulish, consider the work of Charles LeDray, who makes exquisite — and very tiny — versions of everyday objects (a chair, a ladder, a shaft of wheat) out of hand - carved human bone.