Deltoid Abduction of the shoulder (moving the arm outwards and away from the body) Outward arm action in a jumping jack Rotator cuffs A group of stabilising muscles of the shoulder which helps to ...

Modern human anatomy has built on the strengths ... Instead, they have to use muscle power to support their body weight when standing or walking upright, a much more tiring situation.

The skeleton provides the framework for muscles and gives the body its defined human shape. Cardiovascular system - OCR The cardiovascular system is made up of three main parts - the heart ...

A mechanism that activates specific muscles in our ears is a leftover from our evolutionary past, back when our ancestors depended more on their hearing for survival.