The Human Body

1. Unit 3
The Human Body

2. Chapter 6
Organization of the Human Body

3. Life
• Homeostasis
• Cells
• Tissues
• Organs
• Body systems
• Human body

4. Cells
• Cell membrane
• Cytoplasm
• Organelles

5. Question
• True or False:
– Tissues are the smallest living structure in the
body.

6. Answer
• False
• Cells
– Smallest living structures in body
• Tissues
– Cells with similar function grouped together

7. Cell Components

8. Organelles
• Nucleus
• Mitochondrion
• Lysosomes
• Ribosomes
• Golgi apparatus
(continued)

9. Organelles
• Centrioles
• Endoplasmic reticulum
• Vesicles

10. Tissues
• Epithelial
• Connective
• Nervous
• Muscular

11. Question
• Which of the following types of tissues
holds parts of the body in place?
A. Muscular
B. Epithelial
C. Connective

12. Answer
• C. Connective
• Connective tissue
– Holds parts of body in place
• Epithelial tissue
– Covers
• Muscular tissue
– Allows movement

13. Describing the Body
• Anatomical position
• Body planes
• Directional terms
• Body cavities
• Abdominal regions

14. Anatomical Position

15. Body Planes
• Midsagittal plane
• Frontal plane
• Transverse plane

16. Sagittal Plane

17. Frontal and Transverse Plane

18. Question
• Which of the following planes divides the
body into front and back portions?
A. Midsagittal
B. Frontal
C. Transverse

19. Answer
• B. Frontal
• Frontal plane
– Divides body into front and back portions
• Midsagittal plane
– Divides body into right and left sides
• Transverse plane
– Divides body into top and bottom portions

20. Directional Terms
• Lateral
• Medial
• Anterior (ventral)
• Posterior (dorsal)
• Inferior
(continued)

21. Directional Terms
• Superior
• Caudal
• Cephalic (cranial)
• Deep
• Superficial
(continued)

22. Directional Terms
• Distal
• Peripheral
• Proximal
• Apex
• Base

23. Question
• True or False:
– The medial side of the foot would be the inside
aspect of the foot.

24. Answer
• True
• Medial
– Toward midline or center of body
• Medial aspect of foot would be inside portion
• Lateral
– Opposite of medial
– Away from center of body or toward sides

25. Body Cavities
• Posterior (dorsal) body cavity
– Cranial or spinal
• Anterior (ventral) body cavity
– Thoracic, abdominal, or pelvic
• Smaller cavities
– Orbital, nasal, or buccal
(continued)

26. Body Cavities

27. Question
• True or False:
– The cranial cavity contains the spinal cord.

28. Answer
• False
• Spinal cavity
– Located within spinal column
– Contains spinal cord
• Cranial cavity
– Located in skull
– Contains brain

29. Abdominal Regions
• Epigastric
• Right and left hypochondriac
• Umbilical
• Right and left lumbar
• Hypogastric
• Right and left iliac

30. Regions

31. Question
• Which of the following regions is located
just below the sternum (breastbone)?
A. Hypogastric
B. Hypochondriac
C. Epigastric

32. Answer
• C. Epigastric
• Epigastric region
– Located just below stomach
• Hypogastric region
– Located over pubic area

33. Answer
• C. Epigastric
• Hypochondriac regions
– Located below ribs on either side of epigastric
region

34. Abdominal Quadrants