1. © 2015, Cengage Learning. All Rights Reserved. The Human Body in Health and Disease Chapter 2

2. © 2015, Cengage Learning. All Rights Reserved. Anatomic Reference Systems Describe the location and functions of body parts using: –Body planes –Body directions –Body cavities –Structural units (continues)

3. © 2015, Cengage Learning. All Rights Reserved. Anatomic Reference Systems (continues) © Cengage Learning

4. © 2015, Cengage Learning. All Rights Reserved. Anatomic Reference Systems (continues) © Cengage Learning

5. © 2015, Cengage Learning. All Rights Reserved. Anatomic Reference Systems (continues) © Cengage Learning

6. © 2015, Cengage Learning. All Rights Reserved. Anatomic Reference Systems (continues) © Cengage Learning

7. © 2015, Cengage Learning. All Rights Reserved. Anatomic Reference Systems (continues) © Cengage Learning

8. © 2015, Cengage Learning. All Rights Reserved. Anatomic Reference Systems © Cengage Learning

9. © 2015, Cengage Learning. All Rights Reserved. Cytology The study of the formation, structure, and function of cells, including: –Chromosomes –DNA –Genetics (continues)

10. © 2015, Cengage Learning. All Rights Reserved. Cytology © Cengage Learning

11. © 2015, Cengage Learning. All Rights Reserved. Histology The study of tissues, which are composed of cells that join together to perform specific functions, including: –Stem cells –Epithelial tissues –Connective tissues –Muscle tissue

12. © 2015, Cengage Learning. All Rights Reserved. Glands Specialized cells that secrete material used elsewhere in the body, including: –Exocrine glands –Endocrine glands (continues)

13. © 2015, Cengage Learning. All Rights Reserved. Glands © Cengage Learning

14. © 2015, Cengage Learning. All Rights Reserved. Organ and Body Systems Body parts are organized into systems according to function. Examples: –Skeletal system –Muscular system –Cardiovascular system

15. © 2015, Cengage Learning. All Rights Reserved. Pathology The study of structural and functional changes caused by disease.

16. © 2015, Cengage Learning. All Rights Reserved. Key Word Parts and Definitions aden/o –gland adip/o –fat anter/o –before, front caud/o –lower part of body, tail (continues)

17. © 2015, Cengage Learning. All Rights Reserved. Key Word Parts and Definitions cephal/o –head cyt/o, -cyte –cell end-, endo- –in, within, inside exo- –out of, outside, away from (continues)

18. © 2015, Cengage Learning. All Rights Reserved. Key Word Parts and Definitions hist/o, histi/o –tissue -ologist –specialist -ology –the science or study of path/o, -pathy –disease, suffering, feeling, emotion (continues)

19. © 2015, Cengage Learning. All Rights Reserved. Key Word Parts and Definitions plas/i, plas/o, -plasia –development, growth, formation poster/o –behind, toward the back -stasis, -static –control, maintenance of a constant level

20. © 2015, Cengage Learning. All Rights Reserved. Questions to Get You Thinking

21. © 2015, Cengage Learning. All Rights Reserved. Question A chromosome is larger than a gene. True or False?

22. © 2015, Cengage Learning. All Rights Reserved. Question Peas have 14 pairs of chromosomes and pigeons have 80. How many do humans have? a.100 b.145 c.46

23. © 2015, Cengage Learning. All Rights Reserved. Question Stem cells die after a determined life span. True or False?

24. © 2015, Cengage Learning. All Rights Reserved. Question A communicable disease and a contagious disease are the same thing. True or False