WLHS/A&P/Oppelt

NAME ________________________

Skeletal System Lab

Introduction: The skeletal system is made up of: bone, cartilage and ligaments. The skeletal

system provides protection and support for internal organs, serves as a fulcrum for muscle

action, is responsible for blood cell production and acts as a reservoir for calcium and

phosphorus.

The adult skeleton is comprised of 206 bones. There are 126 bone in the appendicular

skeleton and 80 in the axial skeleton. Knowledge of the skeletal system bone structure is

important for understanding the physiology and mechanics of body movement and muscle

action. In this lab you will proceed through 5 stations in the classroom. At each station you

will apply what you have learned by identifying the various bone markings and surface features

of selected bones of the skeleton.

Procedure: You will be visiting the 7 stations. Each station will concentrate on a specific

region of the skeleton. There are numbers on each of the bones. You will be matching of the

bones on the data table with the numbers on the model.

Station 1: Skull

1 7

2 8

3 9

4 10

5 11

6

Station 2: Hips

12 15

13 16

14

Station 3: Thoracic Cage

17. 21

18 22

19 23

20

Station 4: Lower Appendages

24 27

25 28

26 29

Station 5: Upper Appendages

30 35

31 36

32 37

33 38

34 39

Station 6: Miscellaneous

Guess If Bone is Arm or Leg Bone Then Identify Bone

40

41

42

43

44

45

Station 7: Entire Skeleton

46 54

47 55

48 56

49 57

50 58

51 59

52 60

53

Questions:

1. What are the five regions of the vertebral column? How many bones are in each region? Why is the

alignment and curvature of these bones important for our posture?

2. What are the names of the first two vertebrate in our spine? What about their shape is important?

3. What are 3 differences between a male and female pelvis?

4. Why are some ribs called true ribs and others false ribs? What are floating ribs?

5. Please provide an example for each of the following surface markings (see page 142 in book):

a. Condyle

b. Facet

c. Foramen

d. Trochanter

e. Sinus

f. Fossa

6. What is the largest foramen in the skull and why is it important?

7. Where are the sutural bones located?

8. What are the following types of joints?

a. Fibrous

b. Cartilaginous

c. Synovial

9. Describe the following movements of each joint below and describe location where this movement can

occur in body.

Joint Movement Location

Ball-and-socket

Condylar

Plane

Hinge

Pivot

Saddle