1 / 15

Axial Skeleton

Axial Skeleton. Skull 8 cranial bones 14 facial bones Middle Ear Bones: 6 Hyoid: 1 Vertebral Column: 26 Thoracic Cage: 25. Appendicular Skeleton. Pectoral Girdle: 4 Upper Limbs: 60 Pelvic Girdle (coxal bone): 2 Lower Limbs: 60 Total: 206. Bones of the Cranium. Occipital

arsenio-clements
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 • Skull • 8 cranial bones • 14 facial bones • Middle Ear Bones: 6 • Hyoid: 1 • Vertebral Column: 26 • Thoracic Cage: 25

  2. Appendicular Skeleton • Pectoral Girdle: 4 • Upper Limbs: 60 • Pelvic Girdle (coxal bone): 2 • Lower Limbs: 60 • Total: 206

  3. Bones of the Cranium • Occipital • Parietal (2) • Frontal • Temporal (2) • Sphenoid • Ethmoid

  4. Occipital Bone • Forms the wall and base of the posterior portion of the skull

  5. Occipital Bone • Lambdoidal suture: joins to parietal bone • Foramen Magnum: hole for spinal cord, nerves, arteries • Occipital Condyles: bumps that articulate with 1st vertebrae

  6. Parietal Bones • Form sides and roof of cranium

  7. Parietal Bones • Sagittal Suture: joins with other parietal bone • Temporal lines: attachment site for mastication muscles • Coronal suture: joins with frontal bone

  8. Frontal Bone • Forms the anterior portion of the cranium

  9. Frontal Bone • Supraorbital notch: hole for nerves and blood vessels • Frontal Sinuses: enclosed air spaces that lighten bone, lined with mucous membranes

  10. Temporal Bones • Form sides and base of skull • Squamosal Suture: joins parietal bone

  11. Temporal Bones • External acoustic meatus: leads to middle ear • Mastoid process: attachment site for muscles that will move the neck, will conduct vibrations • Styloid Process: attachment site for muscles of tongue and throat

  12. Sphenoid Bone • Directly in middle of skull • Wedged between several other bones

  13. Sphenoid Bone • Sella Turcica: deep saddle-shaped depression that houses the pituitary gland • Sphenoid Sinuses

  14. Ethmoid Bone • Make up nasal cavity and parts of the eye socket • Ethmoid Sinuses

  15. Ethmoid Bone • Crista Galli: meninges that cover brain attach here • Superior and Middle Nasal Conchae: projection of lateral wall of nasal cavity that increase surface area of each cavity

More Related