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kmganatomy

axial skeleton

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