1. Axial Skeleton Ch. 7

2. Two types of bone markings Depressions – cavities that indent the bone Projections – processes that grow out of the bone Add - fontanelles

3. Fontanelles Dense connective tissue filled space between skull bones at birth

4. Fissure Narrow, slit-like opening between adjacent parts of a bone, through which vessels and nerves pass

5. Foramen An opening through which blood vessels, nerves, or ligaments pass

6. Fossa Depression in or on a bone

7. Groove or sulcus Furrow or depression that accommodates a soft structure such as a blood vessel, nerve, or tendon

8. Condyle Large, rounded articular prominence

9. Facet A smooth, flat surface

10. Head Rounded articular projection supported on the neck of a bone

11. Tuberosity Large, rounded, usually roughened process

12. Trochanter Large projection found only on the femur

13. Skull 22 bones Cranial (8) – Frontal, parietal, temporal, occipital, sphenoid, ethmoid Facial (14) – Nasal, maxillae, zygomatic, mandible, lacrimal, palatine, inferior nasal conchae, vomer

14. Skull

15. Sutures Immovable joint found between skull bones Begin to ossify between age 20-30 Sutures – Coronal – between frontal bone and 2 parietal bones – Sagittal – between two parietal bones – Lambdoid – between parietal bones and occipital bone – Squamous – between parietal bones and temporal bones

16. Sutures

17. Vertebral Column 26 vertebrae Numbered by region – C-1, T-5, L-3, etc. 5 regions – Cervical (neck) – 7 – Thoracic (chest) – 12 – Lumbar (lower back) – 5 – Sacrum – 5 fused – Coccyx – 4 fused

18. Vertebral Column Spinal curvatures – one for each region

19. Vertebrae C-1 – atlas; C-2 – axis

20. Rib Cage 1-7 are true ribs – attached to sternum 8-12 are false ribs – no attached to sternum 11-12 are floating ribs – not attached to anything Intercostal space – space between ribs

21. Rib Cage and Sternum Clavicle Xyphoid process Sternum