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Skeletal System

Lab 6, Axial Skeleton. Skeletal System. Orange = axial skeleton Yellow = appendicular skeleton. Cranial Bones 1 = frontal bone 2 = parietal bone 3 = occipital bone 4 = temporal bone 10 = sphenoid bone 23 = coronal suture 28 = squamosal suture. 1. 23. 2. 28. 10. 4.

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Skeletal System

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  1. Lab 6, Axial Skeleton Skeletal System Orange = axial skeleton Yellow = appendicular skeleton

  2. Cranial Bones 1 = frontal bone 2 = parietal bone 3 = occipital bone 4 = temporal bone 10 = sphenoid bone 23 = coronal suture 28 = squamosal suture 1 23 2 28 10 4 3

  3. Cranial Bones 2 = parietal bones 3 = occipital bone 24 = sagittal suture 25 = lambdoidal suture 24 2 2 25 3

  4. Cranial Bones 3 = occipital bone 4 = temporal bones 5 = sphenoid bone Inferior view of skull 5 5 4 4 3

  5. Interior view of skull Cranial Bones 1 = frontal bone 2 = parietal bones 3 = occipital bone 4 = temporal bones 5 = sphenoid bone 5a = sellaturcica (of sphenoid bone) 6 = ethmoid bone 6a = crista galli (of ethmoid bone) 6b = cribriform plate (of ethmoid bone) 1 6 a b 2 2 5 5a 4 4 3

  6. Parts of occipital bone 19 = occipital condyles 20 = foramen magnum 19 19 20

  7. Parts of temporal bones 4 = temporal bone 5 = mastoid process 6 = zygomatic process 7 = external acoustic meatus 8 = styloid process lateral view of skull 6 7 8 5

  8. Parts of temporal bones 4 = temporal bone 5 = mastoid process 6 = zygomatic process 7 = external acoustic meatus 8 = styloid process 9 = mandibular fossa 6 6 9 9 8 8 5 5

  9. Parts of temporal bones 10 = carotid canal 11 = jugular foramen 10 10 11 11

  10. Parts of ethmoid bone 14 = crista galli 13 = cribriform plate 14 13 Parts of sphenoid bone 12 = sellaturcica 12 20 Parts of temporal bones 11 = jugular foramen 11 11 Parts of occipital bone 20 = foramen magnum

  11. Facial bones 10 = sphenoid bone* 11 = zygomatic bone 12 = nasal bone 13 = maxilla 14 = lacrimal bone 15 = ethmoid bone* 16 = mandible 14 12 15 10 11 13 16 *cranial bones

  12. Facial bones 11 = zygomatic bones 12 = nasal bones 13 = maxilla 16 = mandible 17 = inferior nasal conchae 12 11 11 13 13 17 17 16

  13. Facial bones 13 = maxilla 13a = palatine process of maxilla 17 = palatine bones 18 = vomer 13a 13a 13 13 17 17 18

  14. 5 = sphenoid bone 5a = superior orbital fissure 6a = perpendicular plate of ethmoid bone 6b = middle nasal concha of ethmoid bone 42 6a 5 5a Parts of Facial bones 17 = inferior nasal concha 32 = mental foramen 36 = alveolar process 41 = infraorbital foramen 42 = supraorbital notch 6b 17 41 36 32

  15. Parts of Facial bones 11 = zygomatic bone 11a = temporal process of zygomatic bone 32 = mental foramen 40 = lacrimal foramen 40 11 11a 32

  16. Parts of Facial bones 11 = zygomatic bone 11a = temporal process 32 = mental foramen 33 = mandibular condyle 34 = coronoid process 35 = ramus 36 = angle 11 11a 34 33 35 32 36

  17. Parts of mandible 32 = mental foramen 33 = mandibular condyle 34 = coronoid process 35 = ramus 36 = angle 33 34 35 32 36

  18. Fetal skull 1 = anterior fontanel 3 = sphenoid fontanel

  19. 2 Fetal skull 1 = anterior fontanel 2 = posterior fontanel 3 = sphenoid fontanel 4 = mastoid fontanel

  20. hyoid bone

  21. Cervical Vertebrae = 7 sacrum & coccyx Thoracic Vertebrae = 12 Lumbar Vertebrae = 5

  22. Atlas, C1 Axis, C2 dens

  23. 1 = Body 2 = Transverse Processes 3 = Pedicles 4 = Lamina 5 = Superior Articulating Processes 5 = Spine 6 = Vertebral Foramen 7 = Transverse Foramen Cervical vertebra

  24. 9 10 1 = Body 3 = Pedicle 4 = Lamella 5 = Transverse Processes 6 = Spine 7 = Superior Articulating Processes 8 = Vertebral Foramen 9 = inferior notch 10 = inferior articulating process thoracic vertebra

  25. 8 1 = Body 2 = Pedicle 3 = Lamella 4 = superior articulating processes 5 = Transverse Processes 6 = Spine 7 = Vertebral Foramen 8 = inferior articulating process lumbar vertebra

  26. Anterior view Posterior view Sacrum and coccyx

  27. Sternum 1 = Manubrium 2 = Body 3 = Xiphoid Process 4 = Costal Cartilage 5 = Sternal Angle 7 = Jugular notch 8 = Clavicular notch Ribs 1-7 = True Ribs 8-12 = False Ribs 11-12 = False Floating

  28. 1 = Head 2 = Neck 3 = Tubercle 5 = Body

  29. Compact Bone Model • Lamella rings • Osteon • Central Canal • Lacuna with osteocyte • Periosteum • Perforating Canal • Endosteum • Not labelled: canaliculi

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