Organization of the Body

Here are the different organizational levels of the body.

There are six different organizational levels which all contribute to the complexity of the human body. They range from tiny things not visible to the human eye, to your body. All of these levels have a relationship to each other in one way or another.

1. Chemical Level - This is the simplest level of the structural pyramid. It consists of other units like atoms, molecules, macromolecules, and organelles.
1. Atoms - Atoms are the tiniest building blocks of matter, they combine to form molecules.
2. Molecules - Molecules are two or more atoms that are formed together by a chemical bond, they form organelles.
1. Macromolecules - Macromolecules are very large molecules that form different polymers.
3. Organelles - Organelles are the basic components that make up the microscopic cells.
2. Cellular Level - The cellular level consists of many different types of cells that help form tissues.This is the level that the simplest living creatures stop at.
3. Tissue Level - Tissues are groups of cells that all have cells with similar functions. There are four different kinds of tissues in the human body.
1. Epithelium - Covers the body surface, lines the internal cavities, and forms glands.
2. Muscle - Provides movement to our bodies
3. Connective - A primary tissue; form and function vary extensively. Functions include supprort, storage, and protection.
4. Nervous - Provides a means of rapid internal communication by transmitting electrical impulses.
4. Organ Level - Organs are all made up of different types of tissues. This level allows extremely complex functions to become possible.
5. Organ System Level - Organs that work together to accomplish a common purpose make up an organ system.
6. Organismal Level - This is the highest level of organization, and an example would be the human body. It represents the sum total of all structural levels working together to pursue the continuance of life.