This is a page with links to several skin disease pages including a search link. Information on frequency of osteoporosis among different groups of people, prevention of the disease, and ways to slow its effects. There are additional links to other bone tissue disorders. This contains a clickable human. You can examine sections of the foot, knee, and elbow joints.
Complete documentation is available.
There is information about excitable cells here. Multiple support groups are listed. This site provides simple pictures and a brief summary of the functions and locations of certain skeletal muscles. Viewers can click on any of several sections through the forearm to examine the positions of the muscles. Complete documentation is available.