Physiology is the study of the functions of human body. In other words, physiology is the science of mechanical, physical, bioelectrical, biochemical functions of human organs and the cells of which they are composed of.

The skeletal system is the bony framework of our body. It consists of all the bones of the body. It supports the body and gives it a shape.

Anatomy is the study of the structure of human body. The term anatomy comes from Greek words: ANA means apart and TOMY means to cut. It is because anatomy was first obtained from dissection.

Joint is the place at which two or more bones meet in the skeleton of the body. Joint may be fixed or movable.

1. Skeletal System
2. Muscular System
3. Digestive System
4. Respiratory System