axial skeleton
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| 206 bones | 80-axial
126-appendicular
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| parietal | (2) form superior and lateral parts of the skull
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| coronal suture | runs in the coronal plane
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| squamous suture | each parietal bone meets a temporal bone inferiorly
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| sagittal suture | where right and left parietal bones meet superiorly
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| lambdoid suture | parietal bone meet the occipital bone posteriorly
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| temporal bones | (2) lie inferior to the parietal bones
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| squamosal region | plate shaped region that abuts the squamous suture
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| zygomatic process | bar like projection that projects anteriorly to meet the zygomatic bone
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| tympanic region | surrouns the external auditory meatus
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| external auditory meatus | external ear canal where sound enters
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| styloid process | projects inferiorly from the tympanic region
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| mastoid region | breast shaped region located posterior to the tympanic region
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| mastoid process | projection located in the mastoid region
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| mastoid air cells | air sinuses which lie just posterior to middle ear cavity
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| petrous region | projects medially and contributes to cranial base
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| carotid canal | internal carotid artery passes through this opening
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| jugular foreman | internal jugular vein passes through this opening
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| frontal bone | forms forehead and roofs the orbits
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| supraorbital margin | su[erior margin of each orbit
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| superciliary arches | lies deep to our eyebrows
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| glabella | smooth part of frontal bone between the superciliary arches
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| frontal eminences | 2 rounded prominences one on each side of frontal bone
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| frontal sinuses | lateral to glabella, contains air-filled sinuses
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| occipital condyles | articulate with first vertebra and enable us to nod our heads 'yes'
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| foramen magnum | inferior part of brain connects with spinal cord
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| external occipital protuberance | external surface of occipital bone
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| sella turcica | saddle-shaped prominence on superior surface of body
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| sphenoidal sinuses | with in the sphenoid body are the paired sinuses
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| ethmoid bone | lies between nasal and sphenoid bones
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| cribriform plate | superior surface of the ethmoid bone
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| perpendicular plate | inferiorly in the median plane
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| ethmoid sinuses | part of the paranasal sinuses
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| superior and middle nasal conchae | medially from the lateral masses and protrude into nasal cavity
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| ear ossicles | bones of the ear
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| malleus | hammer
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| incus | anvil
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| stapes | sturrup of saddle
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| mandible | lower jaw bone
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| horizontal body of the mandible | 2 upright rami
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| mandibular angle | angle formed by function of inferior edge of body and the posterior edge of ramus
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| alveolar process | superior border or body of the mandible
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| mental protuberance | tip of chin
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| maxillary sinuses | largest paranasal sinuses
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| alveolar process (inferior) | inferior margin of the maxillary bones; the tooth sockets, called alveoli, open into this margin
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| palatine process | projects medially from the alveolar process to form the anterior region of the hard palate
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| zygomatic bones | form lateral walls of orbits
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| nasal bones | form bridge of nose
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| lacrimal bones | losdcated in the medial orbital walls
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| palatine bones | complete the posterior part of the hard palate
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| vomer | forms the inferior part of the nasal septum
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| inferior nasal conchae | thin, curved bones that project medially to form the lateral walls of nasal cavity
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| hyoid bone | has no direct articulation with any other bone
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| cervical vertebrae | 7 of the neck region; C1-C7; concave
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| thoracic vertebrae | 12 of thoracic; T1-T12; convex
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| lumbar vertebrae | 5 in lower back; L1-L5; concave
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| sacrum | inferior to lumbar and superior tot he coccyx (articulate with hips)
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| coccyx | most inferior region of the vertebral column
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| 4 curvatures | give vertebral column an S-shaped and increase the resilience of the spine
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| manubrium | superior section articulates with medial ends of clavicles
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| xiphoid process | inferior end of sternum
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| true ribs | (1-7) attach to sternum by costal cartilage
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| false ribs | (8-12) attach indirectly to sternum
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| floating ribs | (11-12)Do Not Attach to sternum
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Created by:
kaylagren
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