1. Axial Skeleton Anatomy
Skeletal System
Axial Skeleton Anatomy

3. The skull
8 cranial bones: occipital, parietal, frontal, temporal, sphenoid, ethmoid
14 facial bones

4. Sphenoid bone: keystone bone because it touches all other cranial bones
Sella turcica – holds the pituitary gland
Ethomoid
Cristal galli and cribriform plates hold the olfactory bulb (nerves)

5. Sinuses: Special openings that lighten the skull, warm and moisten air
Figure 6.12c
Sinuses: Special openings that lighten the skull, warm and moisten air

7. Hyoid bone – only bone that doesn’t articulate with another bone
Anchors the tongue.

8. 7 12 5

9. Bone Markings of Vertebra

10. Atlas and Axis (C1 and C2)

12. Sacrum and Coccyx – fused vertebra

13. Ribs (12 pair)
True (7) connect directly to sternum via coastal cartilage
False (3) connect indirectly
Floating (2) don’t connect

14. Axial Practice Quiz Anterior View
Any number with an *, name the Bone marking.
For all numbers, name
the bone. 1 2* 3 4 8 5* 6 7*

15. Lateral view of skull
12* 13 11 10 9 8 1* 7* 6 2* 4* 3* 5*

16. Medial view of skull 6 1* 2 3 4 5*

17. Superior View of Skull after transverse cut.1* 6* 2* 5* 3 4*

18. 8
Inferior view of skull 7 6* 1 2* 5* 3* 4

19. 1* 2* 3 4* 7* 5 6

20. Name the bones of the vertebral column and give the number of vertebra for each category.

21. 4 5* 1 2 3

22. 9* 10 8* 2* 1 3* 7* 4*

23. 5* 7 1* 4* 6* 8* 9* 2*
10* 3