The Human Body: An Orientation

1. The Human Body: An Orientation

2. Anatomy Study of the structure and shape of the body and its parts Physiology Study of how the body and its parts work or function The Human Body—An Orientation

3. Gross Anatomy Large structures Easily observable Anatomy—Levels of Study Figure 14.1

4. Microscopic Anatomy Very small structures Can only be viewed with amicroscope Checkpoint: Explain the overall relationship between Anatomy & Physiology… A&P complement each other, because structure determines function and function is based on structural components Anatomy—Levels of Study Figure 14.4c–d

5. Molecules Atoms Chemical levelAtoms combine toform molecules Levels of Structural Organization Figure 1.1, step 1

6. Smooth muscle cell Molecules Cellular levelCells are made up of molecules Atoms Chemical levelAtoms combine toform molecules Levels of Structural Organization Figure 1.1, step 2

7. Smooth muscle cell Molecules Cellular levelCells are made up of molecules Atoms Chemical levelAtoms combine toform molecules Smoothmuscletissue Tissue levelTissues consist ofsimilar types of cells Levels of Structural Organization Figure 1.1, step 3

8. Smooth muscle cell Molecules Cellular levelCells are made up of molecules Atoms Chemical levelAtoms combine toform molecules Smoothmuscletissue Tissue levelTissues consist ofsimilar types of cells Epithelialtissue Levels of Structural Organization Smoothmuscletissue Bloodvessel(organ) Connectivetissue Organ levelOrgans are made upof different typesof tissues Figure 1.1, step 4

9. Smooth muscle cell Molecules Cellular levelCells are made up of molecules Atoms Chemical levelAtoms combine toform molecules Smoothmuscletissue Tissue levelTissues consist ofsimilar types of cells Epithelialtissue Levels of Structural Organization Smoothmuscletissue Bloodvessel(organ) Cardio-vascularsystem Connectivetissue Organ levelOrgans are made upof different typesof tissues Figure 1.1, step 5 Organ system levelOrgan systems consist of differentorgans that work together closely

10. Smooth muscle cell Molecules Cellular levelCells are made up of molecules Atoms Chemical levelAtoms combine toform molecules Smoothmuscletissue Tissue levelTissues consist ofsimilar types of cells Epithelialtissue Levels of Structural Organization Smoothmuscletissue Bloodvessel(organ) Organismal levelHuman organismsare made up of manyorgan systems Cardio-vascularsystem Connectivetissue Organ levelOrgans are made upof different typesof tissues Figure 1.1, step 6 Organ system levelOrgan systems consist of differentorgans that work together closely

11. Integumentary Forms the externalbodycovering Protectsdeeper tissue frominjury Helpsregulatebody temperature Location of cutaneousnerve receptors Organ System Overview Figure 1.2a

12. Skeletal Protectsand supports body organs Providesmuscle attachment for movement Site of blood cell formation aka “hematopoesis” Storesminerals Organ System Overview Figure 1.2b

13. Muscular Producesmovement Maintainsposture Producesheat Organ System Overview Figure 1.2c

14. Nervous Fast-actingcontrolsystem Responds to internal andexternalchange Activatesmuscles andglands Organ System Overview Figure 1.2d

15. Endocrine Secretesregulatoryhormonesfor: Growth Reproduction Metabolism Organ System Overview Figure 1.2e