-
prominent, bulging bones behind the frontal bone; forms the top sides of the cranial cavity
parietal bone
-
form the lower sides of the cranium and part of the cranial floor; contain the middle and inner ear structures
temporal bone
-
thin, flaring upper part of temporal bone
squamous portion
-
rough-surfaced lower part of the temporal bone posterior to the external auditory meatus
mastoid portion
-
wedge-shaped process that forms part of the center section of cranial floor between the sphenoid and occiptal bones.
petrous portion of temoral bone
-
protuberance just behind ear
mastoid process of temporal bone
-
mucosa-lined, air filled spaces within the mastoid process
mastoid air cells
-
tube extending into the temporal bone from the external ear opening to the tympanic membrane
external acoustic meatus
-
projection that articulates with the zygomatic bone
zygomatic process
-
oval shaped depression anterior to the external acoustic meatus; forms the socket for the condyle of the mandible
mandibular fossa
-
slender spike of bone extending downward and forward from the undersurface of the bone anterior to the mastoid process
styloid process
-
forehead bone; also forms most of the roof of the orbits and the anterior part of cranial floor
frontal bone
-
arched ridge just below eyebrow; forms the upper edge of the orbit
supraorbital margin of frontal bone
-
cavities inside the bone just above supraorbital margin; lined with mucosa; contains air
frontal sinuses of frontal bone
-
smooth area between the supercillary ridges and above the nose
glabella of frontal bone
-
forms the posterior part of the cranial floor and walls
occipital bone
-
hole thru which the spinal cord enters the cranial cavity
foramen magnum
-
convex, oval processes on wither side of the foramen magnum; articulate with depressions on the first cervical vertebra
occipital condyles
-
prominent projection on the posterior surface in the midline a short distance above the foramen magnum; can be felt as a definite bump
external occipital proturberance
-
keystone of the cranial floor; forms its midportion; resembles a bat with wings outstreched. lies behind and slightly above the nose and throat; forms part of the floor and sidewalls of the orbit
sphenoid bone
-
lateral projections from the body; form part of the outer wall of the orbit
greater wings of sphenoid bone
-
thin, triangular projections from the upper part of the sphenoid body; form posterior part of the roof of the orbit
lesser wings of sphenoid bone
-
saddle-shaped depression on the upper surface of the sphenoid body; contains the pituitary gland
sella turcica
-
irregular mucosa lined, air filled spaces within the central part of the sphenoid
sphenoid sinuses
-
complex irregular bone that helps make up the anterior portion of the cranial floor, medial wall of the orbits, upper parts of the nasal septum, and sidewalls and part of the nasal roof; lies anterior to the sphenoid and posterior to nasal bones
ethmoid bone
-
offactory nerves pass thru numerous holes in this horizontal plate
cribriform plate
-
meninges attach to this process
crista galli
-
forms the upper part of the nasal septum
perpendicular plate
-
honeycombed, mucosa lined air spaces within the lateral masses of the bone
ethmoid sinuses
-
help form the lateral walls of the nose
superior and middle nasal conchae(turbinates)
-
forms lower and posterior part of nasal septum; shaped like the blade of a plough
vomer
-
upper jaw bones; form part of the floor of the orbit, anterior part of the roof of the mouth, and floor of the nose and part of the sidewalls of the nose
maxilla
-
large, air filled cavity within body of maxilla; lined with mucous membrane; largest of paranasal sinuses
maxillary sinus
-
hole on external surface orbit; transmits vessesl and nerves
infraoribtal foramen
-
cheekbones; form part of floor and sidewall of eye orbit
zygomatic bone
-
form posterior part of the hard palate, floor, and part of the sidewalls of the nasal cavity and floor of orbit
palatine bone
-
thin platelike bones; posterior and lateral to nasal bones in medial wall of eye orbit; help form sidewall of nasal cavity
lacrimal bone
-
pair of small bones that form the upper part of bridge of nose
nasal bones
-
thin scroll of bone forming shelf along inner surface of sidewall of nasal cavity; lies above roof of mouth
inferior nasal conchae
-
lower jawbone; largest, strongest bone of the face
mandible
-
main part of the bone; forms the chin
body of the mandible
-
process, one on either side, that projects upward from the posterior part of the body
ramus
-
part of each ramus that articulates with the mandibular fossa of the temporal bone
condylar process
-
juncture of posterior and inferior margins of ramus
angle
-
name the 4 cranial sutures
- squamous-along edge of temporal bone
- coronal-between parietal&frontal bones
- lambdoid-between parietal&occipital bones
- sagittal-between R/L parietal bones
-
7 bones that form the orbits
- frontal-roof
- ethmoid-medial wall
- lacrimal-medial wall
- sphemoid-lateral wall
- zygomatic bone-lateral wall
- maxilla-floor
- palatine-floor
-
the air sinuses
- frontal
- sphenoidal
- ethmoidal
- maxillary
-
main part of vertebra, flat round mass located anteriorly
body
-
short projections extending posteriorly from the body
pedicles
-
posterior part of the vertebra to which pedicles join and from which processes project
lamina
-
formed by the pedicles and laminae; protects the spinal cord posteriorly.
neural arch
-
congential absence of one or more neural arches
spina bifida
-
sharp process projecting inferiorly from laminae in the midline
spinous process
-
right and left lateral projections from laminae
transverse processes
-
project upward from laminae
superior articulating processes
-
project downward from laminae; articulate with superior articulating processes of vertebrae below.
inferior articulating processes
-
hole in the center of the vertebra formed by union of the body, pedicles, and laminae
spinal foramen
-
opening between the vertebra thru which the spinal nerves emerge
intervertebral foramina
-
what are the 2 primary curves
-
what are the 2 secondary curves
-
what 3 bones make up the thorax
- sternum
- ribs
- thoracic vertebrae
-
how many pairs of ribs are there
- 12
- 1-7 true ribs
- 8-10 false ribs
- 11-12-floating ribs
-
projection at the posterior end of rib; articulates with corresponding thoracic vertebra.
head
-
constricted portion just below head of rib
neck
-
small knob just below the neck of rib; articulates with the transverse process of the corresponding thoracic vertebra, missing in lowest 3 ribs
tubercle
-
main part of a rib
body/shaft
-
3 bones that make up the coxal(pelvic) bone
- ilium-largest
- ischium-strongest
- pubis-most anterior
-
large hip bone; with the sacrum and coccyx, forms the basinlike pelvic cavity
coxal
-
upper, flaring portion of coxal bone
ilium
-
lower, posterior portion of coxal bone
ischium
-
medial, anterior section of coxal bone
pubis
-
hip socket; formed by union of ilium, ischium, and pubis
acetabulum
-
upper, curving boundary of the ilium
iliac crest
-
prominent projection at the anterior end of the iliac crest
anterior superior iliac spine
-
less prominent projection short distance below anterior superior spine
anterior inferior iliac spine
-
at the posterior end of the iliac crest
posterior superior iliac spine
-
just below the posterior superior spine
posterior inferior iliac spine
-
large notch on the posterior surface of the ilium just below the posterior inferior spine
greater sciatic notch
-
large, rough, quadrilateral process forming the inferior part of the ischium; when sitting the body rest on these.
ischial tuberosity
-
pointed projection just above the ischial tuberosity
ischial spine
-
part of the pubis lying between the symphysis and acetabulum; forms upper part of the orbturator foramen
superior pubic ramus
-
part extending down from symphysis; unites with the ischium
inferior pubic ramus
-
curve formed by the two inferior rami
pubic arch
-
angle formed under the inferior pubic rami; larger in women
subpubic angle
-
upper margin of the superior ramus
pubic crest
-
rounded process at the end of the pubic crest
pubic tubercle
-
large hole in the anterior surface of the coxal bone; formed by the pubis and ischium; largest foramen in the body
obturator foramen
-
boundary of the aperture leading into the true pelvis; formed by the pubic crests, iliopectineal lines, and sacral promontary.
pelvic inlet(brim)
-
space below the pelvic brim; true "basin"
true pelvis(lesser pelvis)
-
broad, shallow space above pelvic brim, or pelvic inlet, part of abdominal cavity
false pelvis(greater pelvis)
-
irregular circumference marking the lower limits of the true pelvis; bounded by the tip of the coccyx and two ischial tuberosities
pelvic outlet
-
complete bony ring; composed of two hip bones(ossa coxae), the sacrum, and the coccyx
pelvic girdle(bony pelvis)
|
|