There are more than 200 bones in the human body. Bones provide anchorage points for the attachment of muscles, they shield and protect internal organs, and they provide form and support for the body. “Bones and Joints” is part of the “Mechanics of Life” series, an introduction to human biology and physiology tailored to the middle-school audience. Humans and other vertebrates are the most prominent animals on earth. There is a great variety among them, but they share certain characteristics that have made them dominant. The vertebrate organism can be viewed as a machine that is the sum of a number of independent yet interacting systems and sub-systems. The “Mechanics of Life” video series describes and illuminates five of the principal systems.
11 minutes • Color