For example, our elbow joint in the arm has two muscles ... Biological processes of the human body. You could get a skeleton model and connect rubber bands to the bones in order to demonstrate ...

Muscles can only contract and relax, so they always work in pairs called antagonistic muscles. Skeletal muscle is joined to bones ... For example, in your arm, your biceps and triceps are ...

Clone Robotics' Protoclone android can be seen flexing its bionic muscles in a new video, creepily jerking its limbs back and forth as it hangs from the ceiling.

But Lucy and other fossil finds reveal that more than 3 million years ago, a relatively small-brained, ape-faced human ancestor ... body as she moved. Lucy: arm bones With dangling, powerful ...

Initially, these bones were identified as a human arm bone (humerus) and the head of a human femur, thought to belong to an individual who lived more than 20,000 years ago. Despite the initial ...

The ensemble of skeletal muscles can be considered the largest metabolic and endocrine organ of the human body. The more than ...

And yet, its humerus (an arm bone) is quite human-like. Characteristics of its ... braincases and relatively large teeth and chewing muscles are similar to those of chimpanzees.

A mysterious group of prehistoric hunter-gatherers who once inhabited the southern Texas coast may have created music in a hauntingly unconventional way—by transforming human bones into instruments.