1. 1. How many ribs make up the rib cage?
2. What is the name of the bone labeled “#2”?
3. What two major organs does the rib cage protect?
4. If you were punched in the stomach, would your ribs protect
you? Explain!
5. How many vertebrae can you count in this spine?
6. Label the 7 cervical vertebrae on your diagram.
(C1, C2, C3, C4, C5, C6, C7)
7. Label the 12 thoracic vertebrae on your diagram.
(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
8. Label the 5 lumbar vertebrae on your diagram.(L1, L2, L3,
L4, L5)
9. Label the sacrum and coccyx on your diagram.
10. How many cartilage disks are in your spine?(Hint: you will
need to count)
11. Identify the types of joints:
a. Elbow =

2. b. Skull =
c. Vertebrae =
d. Hip =
12. Go to
Busy Bones – Virtual Bones Lab
then click on the “Virtual Bone Microscope”
13. Click on slide 1
a. What is the other name for Trabecular bone?
b. Describe the characteristics of
i. Spongy bone
ii. Compact bone
14. Click on slide 2
a. Describe the epiphysis and its function.
b. Describe the growth plate and its function.
15. Click on slides 3 and 4
a. What do the osteoblasts do?
16. Click on slide 5, 7, and 8
a. Describe what is in the Haversian canals.
b. Describe the canaliculi and their function.

3. 17. Click on slide 6
a. Describe the trabeculae and what fills this.
1. The skeleton is divided into 2 sections. The
__________________ skeleton which includes the skull, ribs,
sternum, and vertebrae, and the _______________________
skeleton which is mainly the limbs.
2. Go to
Busy Bones – Virtual Bones Lab
then click on the “Skeleton Viewer” to investigate the names
and positions of the various bones. Label the skeleton below.