Skeletal muscles are voluntary muscles that can be consciously controlled, such as the muscles of your neck, arms, and legs. It makes up 30% to 40% of human body weight in a healthy person. The ...

To draw hands accurately, you need to look past the complexity of their anatomy and recognise simple rules that will help you draw from a model, or even your own imagination. Although they're ...

It is caused by the disruptions of signals from nerve cells of the spinal cord (called motor neurons) to skeletal muscles that control body movements. Possible causes include spinal cord injury, ...