Lab Hand Out 3 - and Axial Skeleton

Bones of the Facial of Skull (14) 1. Cranial Bones (8) A. A. Inferior 1. Temporal line of parietal bone B. B. C. Bone 1. Supraorbital notch () D. Palatine 2. Squamous part of frontal bone E. i. 1. Lacrimal F. C. 1. Alveolar Margins of the Maxilla 1. 2. Alveolar Sockets 2. 3. Palatine of maxilla 3. G. 4. 1. Alveolar Margins of the Mandible 5. Perpendicular plate 2. 3. Mandibular Body D. 4. Mandibular Angle 1. Occipital Condyle 5. Mandibular Ramus 2. 6. Mandibular Condyle 3. External Occipital Protuberance 7. Coronoid Process 4. Superior Nuchal line 8. 5. Groove for transverse dural sinus H. I. Orbital surfaces E. 1. Orbital surface of the frontal bone 1. 2. Orbital surface of the sphenoid bone a. Hypophyseal fossa 3. Orbital surface of the ethmoid bone 2. Greater Wings 4. Orbital surface of the maxilla bone 3. Lesser Wings 5. Orbital surface of the zygomatic bone 4. Pterygoid Processes F. 1. External Acoustic (or External auditory meatus) 2. Internal Acoustic Meatus (or Internal auditory 4. Sinuses: mucous-lined air cavities meatus) a. 3. of temporal bone b. 4. Mastoid Process c. 5. Styloid Process d. 6. Petrous Part 7. Groove for sigmoid sinus Cranial fossae 3. Sutures a. A. b. B. c. C. Processes of the Skull D. Squamous Suture a. of the temporal bone b. Temporal process of the zygomatic bone 4. Fetal Skull c. Frontal process of the maxilla bone A. Anterior Fontanel d. Frontal process of the zygomatic bone B. Posterior Fontanel C. Sphenoidal Fontanel D. Mastoid Fontanel

5. Foramen/openings in skull A. Olfactory/Cribriform Foramina B. Optic foramen & optic

Unfiled Notes Page 2 B. Optic foramen & 8. Vertebrae C.  Intervertebral Foramina D. E.  classification: Cervical, thoracic, lumbar, , F. Foramen Lacerum A. General Landmarks (found in the vertebrae) G. 1. Body (Centrum) H. 2. Vertebral arch I. i. Pedicle J. ii. Lamina K. 3. Spinous Process L. 4. Superior articulating process & facet M. 5. Inferior articulating process & facet N. Superior orbital 6. Transverse Process O. 7. /canal P. 8. (foramina) Q. Incisive fossa (foramen) B. R. 1. Bifid Spinous Process 2. Verterbral Prominence (Long Spinous Process of C7) 6. Axial Skeleton Bones 3. Transverse Process I. Hyoid Bone 4. Transverse Foramina A. Body 5. B. Greater Horn i. Superior Articular Facet C. Lesser Horn ii. Inferior Articular Facet 6. II. i. Body • Classification: True Ribs & false ribs (Fused & Floating Ribs) ii. Dens (Odontoid Process) • A. Shaft 7. (T1 - T12) B. Costal Angle i. Transverse costal facet C. Neck of ii. Superior costal demifacet D. Head of rib iii. Inferior costal demifacet E. Costal Groove 8. (L1 - L5) F. Tubercle 9. Sacrum G. Costal Cartilage A. Sacral Promontory III. B. Transverse ridges (Lines) A. Manubrium C. Sacral Foramina 1. Jugular Notch D. Apex 2. Clavicular Notch E. Ala of sacrum B. Body F. Auricular Surface C. G. Sacral Canal D. H. Superior Articular Process (of sacrum) I. Medial Sacral Crest 10. Coccyx

7. Osteon Model (Haversian System) 1. periosteum 2. Endosteum 3. Perforating or Sharpey’s fibers 4. Canaliculi 5. Lamellae rings 6. Lacuna with osteocyte 7. Central (Haversian) Canal 8. perforating (Volkmann’s) canal

Unfiled Notes Page 3