axial Skeleton test 1 Flashcards
What are cranial bones ?
They all touch the brain
What is the axial skeleton ?
Body axis; skull, vertebrae, ribs, sternum.
What is the Appendicular skeleton ?
Arms and legs and the bones that hold them on.
Name this bone:
Location: forehead; anterior cranial roof and floor. Superior eye orbits.
Parts: orbital margin, supraorbital foremen.
Frontal bone(skull bone)
Name this bone:
Location: medial cranium, top sides of middle roof of cranium.
Parts: nose
Parietal bones(2)(skull bone)
Name this bone:
Location: deep to the ear
Parts: external acoustic meatus, styloid process, mastoid process, zygomatic process, Petrous part, internal acoustic meatus
Temporal bones(skull bone)
Name this bone:
location: deep toward center of cranium touches all other skull bones.
parts: body, greater wings, lesser wings, pterygoid process, stella turcica.
sphenoid bone(skull bone)
Name this bone:
Location:posterior wall and floor of cranium
Parts: foramen magnum, occipital condyles, external occipital crest, external occipital protuberance
Occipital bone(skull bone)
name this bone:
location: behind nasal bone, behind eye sockets
parts: crista galli, cribriform plate, lateral masses, middle nasal conchae, perpendicular plate.
ethmoid bone(skull bone)
what are sutures?
they are the joints between skull bones.
which suture is between the temporal and parietal bones?
squamous suture
which suture is between the parietal bones?
sagiteal suture
which suture is between the occipital bone and parietal bones?
lambdoid suture
which suture is between frontal and parietal bones?
coronal suture
name this bone:
location: bridge of nose
parts: none
nasal bones (facial bone)
name this bone:
location: medial eye orbit, upper lip, medial cheeks, anterior hard palate.
parts: incisive fossa, palatine processes, alveoli, (tooth sockets), infra orbital foramen, inferior nasal conchae
maxillae (maxillary bones, facial bone)
name this bone:
loction: cheek bones, points of cheeks, lateral eye orbit
parts: temporal process(forms zygomatic arch with zygomatic process)
zygomatic bones(facial bone)
name this bone:
location: lower jaw
parts: mental foramen, alveoli, mandibular condyle, coronoid process
mandible(facial bone)
name this bone:
location: medial eye orbit
parts: lacrimal foramen
lacrimal bones(facial bone)
name this bone:
location: posterior hard palate
parts: horizontal pate
palatine bones(facial bone)
name this bone:
location:inferior nasal cavity, forms nasal septum with perpendicular plate of ethmoid bone
vomer(facial bone)
what is paranasal sinuses?
some skull bones are hollow- frontal sphenoid, ethmid, maxilla bones. spaces are lined with mucus membrane and connect to nasal cavity.
name this bone:
not a skull bone, doesn’t touch any other bones.
location: sits on larynx inside curve of mandible.
hyoid bone
what is the vertebral column?
dorsal surface, formed by stacked vertebrae locations: cervical region- neck 7 vertebrae
thoracic region- upper back 12 vertebrae
lumbar region- lower back 5 vertebrae
saccrum- 5 fused vertebrae pelvis
coccyx- 4-5 vertebrae may be fused (tail)
what is the cervical vertebrae?
has transverse foramen.
1) c1-atlas no body
2) c2-axis body has a projection (dens)
name the parts of a typical vertebrae?
parts: body, spinous process, transverse process, superior articular processes, inferior articular processes
what is the thoracic vertebrae?
has costal facet on body and transverse costal facet on transverse process to join ribs
what vertebrae has no foramen no costal facets just thick bodies?
lumbar vertebrae(vertebral column)
what is 5 fused vertbrae, parts include sacral canal, dorsal sacral foramina, ventral sacral foramina, superior articular process, aurical surface?
saccrum(vertebral column)
name this bone:
location: midline of thorax(chest)
parts: manubrium (parts- jugular notch, clavicular notches)
body- no parts (most ribs attach here)
xiphoid process- no parts (hardens with age)
sternum(thorax)
name this bone(s):
location: form joints with thoracic vertebrae and sternum
parts: head, neck, articular tubercle, shaft, costal grooves sternal end
ribs (thorax)
