Between these regions, running vertically down the abdomen from top to bottom are the epigastric, umbilical and pubic regions, in order. Note the organs from the illustration that are in each region and how some organs take up more than one region. Further surface anatomical terminology is illustrated in Figure 4 and Figure 5 . Posterior knee Gross anatomy is the study of structures that can be examined without the use of a microscope. Systemic anatomy is the study of specific systems of the body, e.g., nervous, reproductive, circulatory, etc.
Regional anatomy is the study of a specific region of the body, e.g., head, chest.
Figure 6 illustrates how a region might be cut for studying purposes. A sagittal section is a section that splits the body into right and left parts. A frontal, or coronal, section divides the body into front and back parts. A horizontal, or transverse, section divides the body into superior and inferior parts. Sections are real, i.e., we can see them and cut them.