1 / 21

Axial Skeleton

Axial Skeleton. Ch. 7. Two types of bone markings. Depressions – cavities that indent the bone Projections – processes that grow out of the bone Add - fontanelles. Fontanelles. Dense connective tissue filled space between skull bones at birth. Fissure.

kyne
Télécharger la présentation

Axial Skeleton

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related