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Lab 10: Structure of Bone

PURPOSE:
To examine the structure of a long bone

LEARNING OBJECTIVES:
1. Locate and name the major parts of a long bone
2. Describe the functions of various parts of a bone
3. Distinguish between compact and spongy bone

PROCEDURE:
1. Review Cpt 6 pages 128-130, and the Bone Outline page

2. Print out images 10.1 and 10.2 (below), paste into your NoteBook and Label

3. Examine the sectioned bones. Draw a picture in your NoteBook and label: epiphysis, spongy bone, articular cartilage, medullary cavity, diaphysis, endosteum, periosteum, marrow, compact bone

4. Examine the fresh bone specimens with the dissecting microscopes. Examine the marrow and the space within the spongy bone. Draw, label and describe in your NoteBook

5. Reexamine the microscopic structure of bone tissue by observing the prepared slides. Draw a picture in your NoteBook and label the following structures: Lamella, Haversian (Osteonic) canal, Osteocyte, Canaliculus, Lacuna, Osteon

6. Complete Part A & B of the Lab Handout.

7. Examine the Fresh Chicken bones that were exposed to HCl and high heat overnight. The resulting effect of each treatment is very different. HCl removes the inorganic salts from the bone matrix, while the heat destroys the protein from the bone matrix. In your NoteBook, describe what each specimen is like and answer the following: Based on your observations, what quality of a bone seem to be due to inorganic salts and what quality of a bone seem to be due to protein?

8. As you complete the lab, Review the "Lab Objectives" from the handout and write a synopsis of the lab addressing the three objectives.

Fig 1 Fig 2


Part B