AXIAL SKELETON

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AXIAL SKELETON

• 80 Bones

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Cranial Bones

• Frontal
• Supraorbital foramen
• Coronal suture

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Cranial Bones

• Parietal
• Sagittal suture
• Temporal
• External auditory (acoustic) meatus
• Zygomatic process
• Mastoid process
• Mandibular fossa
• Squamosal suture

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Cranial Bones

• Occipital
• Foramen magnum
• Occipital condyles
• Lambdoidal suture

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Cranial Bones

• Sphenoid
• Superior orbital fissure
• Sella turcica

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Cranial Bones

• Ethmoid
• Crista galli
• Cribriform plate
• Olfactory formina
• Superior nasal concha
• Middle (Medial) nasal concha
• Perpendicular Plate

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• Sinuses
• Fontanels

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Facial Bones

• Mandible
• Mandibular condyle
• Coronoid process
• Alveoli Alveolar margins

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Facial Bones

• Maxilla
• Alveoli
• Palatine process

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Facial Bones

• Palatine
• Zygomatic
• Lacrimal
• Lacrimal fossa/sulcus

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Facial Bones

• Nasal
• Vomer
• Inferior nasal concha

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Hyoid Bone
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Vertebrae
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Vertebrae

• Body
• Vertebral arch (pedicles and laminae)
• Vertebral foramen
• Transverse process
• Spinous process
• Articular process Facet

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Vertebrae

• Intervertebral foramina
• Intervertebral disc

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Cervical Vertebrae

• Seven
• Atlas
• Axis
• Odontoid process Dens

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Vertebrae
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Thoracic Vertebrae

• Twelve

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Vertebrae
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Lumbar Vertebrae

• Five

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Vertebrae
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Sacral Vertebrae

• Five fused Sacrum

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Vertebrae
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Coccygeal vertebrae

• 3-5 fused Coccyx

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Sternum

• Manubrium (Jugular notch)
• Body
• Xiphoid process

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Ribs

• True 7
• False 5
• Floating 2
• Head
• Tubercle
• Costal Cartilage

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