Axial Skeleton Flashcards
What is the Axial Skeleton
body axixs composed of the skull, thoracic cage and vertebral column.
Major bone of the forehead
Frontal Bone
superior ridge of the eyesocket
Supraorbital Margin
the ridge above the eyesocket indicating the location of the frontal sinus
supercilliary arch
people would look super silly without them
the smooth trianglular part of the frontal bone found midline directly above the nasal bones connecting the superciliary arches
Glabella
edward kisses bella on the glabella
cavity within the frontal bone
frontal sinus
Large paired bone located in the superior portion of the skull
Parietal Bone
runs laterally, joinig the frontal and parietal bones
Coranal Suture
runs where I would wear a crown
runs anteriopostiorally joining the two parietal bones
sagittal suture
paired bone located on the lateral sides of the skull
temporal bone
where your temple is
runs anteriopostiriorally jointing the temporal and parietal bones
squamous suture
articulates with the condylar process of the mandible
mandibular fassa
where the madible connects
articulation of the mandibular fossa and the condylar process of the mandible
temporomandibular joint
joins the temporal and the mandible
opening in the temporal bone extending to the inner ear
external auditory (acoustic) meatus
short canal in the petrous part of the temporal bone, extentding laterally towadrs the inner ear
internal auditory (acousitc) meatus
dense bony ridge on the interior surface of the temporal bone, location of the middle and inner ear cavities
Petrous Part
long sharp process of the temporal bone extending inferiorly
Styloid Process
it sticks up like a stylettoh heel
rounded process of the temporal bone posterior to the styloid process and extending inferiorly
Mastiod Process
it is the massive one
located between the styloid and mastoid processes; passageway for the facial nerve
stylomastoid foramen
the hole between styloid and the mastoid processes
located on petrous part of the temporal bone anterior to the jugular foramen
Carotid Canal
I drove my sylish massive car into the carotid canal
located on the inferior petrous part of the temporal bone posterior to the coratid canal
Jugular foramen
arch of bone extending anteriorly from the temporal bone
zygomatic process
paired bone which paticipates with the zygomatic process
zygomatic bone
arch of bone extending posteriorly from the zygomatic bone
temporal process
fromed by the union of the zygomatic bone and the zygomatic process of the temporal process
zygomatic arch
most posterior and inferior bone of the skull
occipital bone
in the back becasue that is where the occipital lobe is and where all the things that go with vision
runs transversely joining the occipital and paietal bones
lamdoid suture
looks like a lamda (upside down Y)
irregular bone within a cranial suture
sutural bone
medium protrusion on the occipital bone posterior and superior to foramen magna
external occipital protuberance
runs horizontally from external occipital protuberance
superior nuchal line
large opening on the inferior part of the skull
foramen magnum
paired rounded processes lateral to the foreman magnum
occipital condyle
paired canal superior to occipital condyle
hypoglossal canal
region of the occipital bone anterior to the foraman magnum
basilar part
butterfly-shaped bone forming the floor of the cranium
sphenoid bone
posterior and inferior ti the lesser wing on the interior of the skull, also visable in the posterior orbit aside and lateral side of the skull
greater wing
anterior and superior to the greater wing on the interior of the skull
lesser wing
fissure between greater and lesser wings of sphenoid visable from the orbits
superior orbital fissure
fissure in the orbit floor between the maxilla and the greater wing of the spheniod
inferior orbital fissure
saddle like depression posterior to lesser wing
sella turcica
turkish saddle
paired cavity located within the shenoid, inferior to the sella turcica
sphenoidal sinus
sharp process that laterally and inferiorly projects from the sphenoid
lateral pterygold plate
sharp process that medial and inferioraly projects from the spheniod
medial pterygold plate
paired opening through lesser wing of the sphenoid
optic canal
paired opening to the lateral to the sella turcica
foramen lacerum
where the cowboy puts his lasso
paired opening lateral to the base of the sella turcica
foraman ovale
the cowboy spits over the valley
paired opening anterior to the foramen ovale
foramen rotundum
for the coyboys round toe boots
paired opening at the posterior margin of the sphenoid
foramen spinosium
where the spit goes after it goes over the valley
located between the orbits and between the sphenoid adnd nasal bones; forms the roof of the nasal cavity
ethmoid bone
superior projection in the middle of the cribiform place of the ethmoid bone
crista galli
put crista in the crib
porous bone surrounding the crista galli in the floor of the cranium through which olfactory nerves pass
cribriform place
put crista in the crib
numerous cavities within the ethmoid bone
ethmoid sinus
median inferior projection of the ethmoid; forms superior nasal septum
perpendicular plate
bone forming the inferior and posterior portion of the nasal septum
vomer
bone that protrudes into the inferior part of the nasal cavity; also known as the inferior turbinate bone
inferior nasal concha
looks like a conch shell
posterior bone of the hard palet
palatine bone
paired fused bone if the upper jaw and central face
maxilla
antierior portion of the hard palate
palatine process
paired opening inferior to the orbit
infraorbital foramen
paired cavity found within the maxilla
maxillary sinus
bony portion of the roof of the mouth, includes palatine bone and palatine process of the maxillary bone
hard palate
paired bone forming part of the medial wall
lacrimal bone
opening in the lacrimal bone
nasolacrimal canal
paired bone composing the superior portion (bridge) of the nose
nasal bone
lower jaw
mandible
most antrior part extending horiziontally to the angle of the mandible
body
where the body and the ramus of the mandible meet
angle
the vertical portion of the mandible extending from the angle
ramus
anterior process of the ramus
coronoid process
corn before cond
the most posterier process of the ramus which contributes to the tempomandibular joint
condylar process
corn before cond
seperates the coronoid from the condylar process
mandibular notch
paired opening on the medial surface of the ramus
mandibular foramen
paired opening on the antirior aspect of the body
mental foramen
protusion in the center of the chin indicating fusion of the two mandibular bodies
mental protuberance
socket lined with connective tissue in which a tooth is fastened
alveolus
teeth socket
projection of the maxilla and mandible where tooth sockets are located
alveolar margin
U-shaped bone located in the neck superior to the larynx
hyoid bone
fibrocartilidge cushion between the vertebral bodies
intervertebral disc
between vertebre
basic bone unit of the vertebral column
vertebra
anterior portion of the vertebra
body
posterior projection from vertebral body that supports the lamina
pedicle
lateral projection of the vertebra for muscle/ligament attachment
transverse process
paired arches supported by the pedicles located posterior to vetebral body
lamina
when the moose is lamenting, the tears run down the lamina
most posterior projection of the vertebra for muscle/ligament attachment
spinous process
the mooses nose
opening in the vertebral body through which the spinal chord extends
vertebral foramen
paired (superior and inferior) process which articulates with process of adjacent vertebrae
articular process
ears of the moon
smooth surface of articular process
articular facet
the flat part
7 total smallest of the vertebrae; more round three holes
cervical vertebrae
paired openings on the transverse process
transverse foramen
supports the head; perfectly round
atlas (C1)
serves as pivitol point for atlas and skull
axis (C2)
the Dens (odontoid process) identifies it
process of the axis which passes though the vertebral foramen of the atlas
Odontiod Process
(dens)
12 total; vertebrae with circular vertebral foramen and long spinous process
thoracic vertebrae
depression on transverse process; articulates with the tubercle of the ribs
costal facet
half facet on superior and inferior edges of each vertebral body; articulates with head of ribs
costal demifacet
5 total; vertebrae with stongly built components for weight bearing
lumbar vertebrae
triangular foramen; articular process is curved
composed of five fused vertebrae forming posterior wall of pelvis
sacrum
lateral part that aticulates with the os coxa though the sacroilliac joint of the pelvis
auricular surface
looks like an ear
fused posterior spinous processes of the sacral vertebrae
median (middle) sacral crest
dino bumps
openings on the posterior side of the sacrum
posterior sacral foramina
openings on the anterior side of the sacrum
anterior sacral foramina
4 fused vertebrae froming the triangular “tailbone”
coccyx
anterior midline anchor for the ribs; composed of three bones
sternum
superior portion of the sternum
manubrium
knot of the tie
important anotomical landmark located in the superior portion of the mandible
jugular (suprasternal) notch
middle portion of the sternum that articulates with T2-T7 rib cartilage
body
the tie part
paired site on the sternum for attachment of costal cartlidge
costal notch
small inferior portion of the sternum
xiphoid process
tip of the tie
connective tissue that connects the ribs to the sternum
costal cartilage
angle formed posteriorly by last floating rib and vertebral column inferior to it
costovertebral angle
ribs
directly attached to the sternum
true ribs
not directly attached to the sternum
false ribs
rounded part of rib which articulates with the thoracic vertebrae via two costal demifaucets
head
region of rib between the head and tubercle
neck
prominence near the head of the rib which articulates with costal facets of thoracic vertebrae
tubercle
curved portion of the rib
angle
elongated portion of the rib associated anteriorly with costal cartilage
shaft
groove on the inferior side of the rib shaft
costal groove
