Reptiles stood upright after mass extinction

(PhysOrg.com) -- Reptiles changed their walking posture from sprawling to upright immediately after the end-Permian mass extinction, the biggest crisis in the history of life that occurred some 250 million years ago and wiped ...

Simulation provides images from the carbon nucleus

What does the inside of a carbon atom's nucleus look like? A new study by Forschungszentrum Jülich, Michigan State University and the University of Bonn provides the first comprehensive answer to this question. In the study, ...

Pre-reptile may be earliest known to walk upright on all fours

A newly published analysis of the bones of Bunostegos akokanensis, a 260-million-year-old pre-reptile, finds that it likely stood upright on all-fours, like a cow or a hippo, making it the earliest known creature to do so.

Image: Mars 2020 rover's seven-foot-long robotic arm installed

In this image, taken on June 21, 2019, engineers at NASA's Jet Propulsion Laboratory in Pasadena, California, install the main robotic arm on the Mars 2020 rover. (A smaller arm to handle Mars samples will be installed inside ...

Doggy paddles help dogs to stay on the move

Canine hydrotherapy improves the mobility of Labradors suffering from elbow dysplasia. Not only this, it also positively affects the strides of healthy dogs, showing great potential as both a therapeutic tool and an effective ...

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Elbow

The human elbow is the region surrounding the elbow-joint—the ginglymus or hinge joint in the middle of the arm. Three bones form the elbow joint: the humerus of the upper arm, and the paired radius and ulna of the forearm.

The bony prominence at the very tip of the elbow is the olecranon process of the ulna, and the inner aspect of the elbow is called the antecubital fossa.

This text uses material from Wikipedia, licensed under CC BY-SA