Body Organization Part 1 Levels of Structural Organization

Body Organization, Part 1

Levels of Structural Organization • Six levels of structural organization 1. 2. 3. 4. 5. 6. Atoms Cells Tissues Organ systems Organisms © 2018 Pearson Education, Inc.

Figure 1. 1 Levels of structural organization. Slide 1 Smooth muscle cell Atoms 1 Chemical level Molecules Atoms combine to form molecules. 2 Cellular level Cells are made up of molecules. Blood vessels 3 Tissue level Tissues consist of similar types of cells. Smooth muscle tissue Heart Cardio– vascular system 6 Organismal level Human organisms are made up of many organ systems. © 2018 Pearson Education, Inc. 5 Organ system level Organ systems consist of different organs that work together closely. Epithelial tissue Smooth muscle Blood tissue vessel (organ) Connective tissue 4 Organ level Organs are made up of different types of tissues.

Figure 1. 1 Levels of structural organization. Atoms 1 Chemical level Molecules Atoms combine to form molecules. © 2018 Pearson Education, Inc. Slide 2

Figure 1. 1 Levels of structural organization. Slide 3 Smooth muscle cell Atoms 1 Chemical level Molecules Atoms combine to form molecules. © 2018 Pearson Education, Inc. 2 Cellular level Cells are made up of molecules.

Figure 1. 1 Levels of structural organization. Slide 4 Smooth muscle cell Atoms 1 Chemical level Molecules Atoms combine to form molecules. 2 Cellular level Cells are made up of molecules. 3 Tissue level Tissues consist of similar types of cells. © 2018 Pearson Education, Inc. Smooth muscle tissue

Figure 1. 1 Levels of structural organization. Slide 5 Smooth muscle cell Atoms 1 Chemical level Molecules Atoms combine to form molecules. 2 Cellular level Cells are made up of molecules. 3 Tissue level Tissues consist of similar types of cells. Smooth muscle tissue Epithelial tissue Smooth muscle Blood tissue vessel (organ) Connective tissue 4 Organ level Organs are made up of different types of tissues. © 2018 Pearson Education, Inc.

Figure 1. 1 Levels of structural organization. Slide 6 Smooth muscle cell Atoms 1 Chemical level Molecules Atoms combine to form molecules. 2 Cellular level Cells are made up of molecules. Blood vessels 3 Tissue level Tissues consist of similar types of cells. Smooth muscle tissue Heart Cardio– vascular system 5 Organ system level Organ systems consist of different organs that work together closely. © 2018 Pearson Education, Inc. Epithelial tissue Smooth muscle Blood tissue vessel (organ) Connective tissue 4 Organ level Organs are made up of different types of tissues.

Figure 1. 1 Levels of structural organization. Slide 7 Smooth muscle cell Atoms 1 Chemical level Molecules Atoms combine to form molecules. 2 Cellular level Cells are made up of molecules. Blood vessels 3 Tissue level Tissues consist of similar types of cells. Smooth muscle tissue Heart Cardio– vascular system 6 Organismal level Human organisms are made up of many organ systems. © 2018 Pearson Education, Inc. 5 Organ system level Organ systems consist of different organs that work together closely. Epithelial tissue Smooth muscle Blood tissue vessel (organ) Connective tissue 4 Organ level Organs are made up of different types of tissues.