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150 Cards in this Set

  • Front
  • Back
longer than wide with broad ends
long bones
exs. of long bones
humerus, ulna, radius, metacarpals, femur, tibia,
fibula, metatarsals, phalanges
length and width close to equal
short bones
exs. of short bones
carpal group, tarsal group and sesamoid bones (patella)
thin, flat shape with parallel surfaces
flat bones
exs. of flat bones
bones of the skull, ribs, sternum
varied usually due to serving "many bosses"
irregular bones
exs. of irregular bones
bones of face, vertebral column, coxal (hip)
found lateral to midsagittal plane(the right one and left one are mirror-images)
paired bones
found medially in midsagittal plane
single bones
what forms the BONY THORAX
a) Ribs
b) Sternum
forms the axial skeleton
skeleton of all the limbs, our appendages
appendicular skeleton
large rounded projection; roughened
narrow ridge of bone
very large, blunt, irregularly shaped process (only on femur)
narrow ridge of bone
small rounded projection or process
a bulge near a condyle, but not an articulating surface
sharp, slender, often pointed projection
any bony prominence
an armlike bar of bone that is near a joint, but not an
articulating surface
narrow cylinder which supports a head
bony expansion carried on a narrow neck
smooth, nearly flat articular surface
rounded articular projection
canal like passageway
cavity within a bone, filled with air and lined with mucous membrane
shallow, basinlike depression in a bone
narrow, slitlike opening
round or oval opening through a bone
function = protection of brain
composed of flat bones
cranial vault
composed of irregular bones
cranial base
grows quickly and matures in early childhood
surrounds the beginning of respiratory and digestive systems, also serves sensory and communication functions
growth matches skeleton growth, in general, and matures @ approx. 22 years
composed of irregular bones
forms the superior lateral and posterior aspects of the skill and forehead
cranial vault (calvaria) (skullcap)
forms the skills inferior aspect
cranial base (cranial floor)
house the eyebeals
constructed of bone and hyaline cartilage
nasal cavity
cinsists of 5 skull bones: frontal, sphenoid, ethmoid, & maxillary bones. contain mucosa-lined sinuses
paranasal sinuses
name the 6 cranial bones
1) Frontal bone 2) Parietal bones 3) Occipital bone 4) Temporal bones 5) Sphenoid bone 6) Ethmoid bone
name the 8 facial bones
1) Mandible 2) Maxillae 3) Zygomatic bones 4) Nasal bones 5) Lacrimal bones 6) Palatine bones 7) Vomer bone
8) Inferior nasal conchae
anterior, superior portion of skull
frontal bones
thickened superior margines of the orbitals
supraorbital margins
supports the frontal lobes of the brain
anterior cranial fossa
pierces the ant. cranila fossa; allows the supraorbital artery and nerve to pass to the forehead
supraorbital foramen (or notch)
smooth portion of the frontal bone between the orbits
areas lateral to the glabella are riddles internally with these
frontal sinuses
superior lateral walls of the cranium
Parietal bones
where a parietal and temporal bone meet on the lateral aspect of the skull
squamous suture
parietal bones meet the frontal bone anteriorly
coronal suture
parietal bones meet superiorly at the cranial midline
sagittal suture
parietal bones meet the occipital bone posteriorly
lambdoid suture
posterior, inferior aspect of skull
Occipital bone
supports the cerebellum
posterior cranial fossa
where the inferior part of the brain meets witht he spinal cord
foramen magnum
articulate with the first veterbra of the spinal column in a way that permits a nodding movement
occipital condyles
through which a nerve of the same name passes
hypoglossal canal
medial protrusion superior to the foamen magnum
external occipital protuberance
inferior to parietal bones
Temporal bones
abuts the squamous suture
squamous region
barlike; meets the zygomatic bone of the face anteriorly
zygomatic process
projection of your cheek formed from the zygomatic process and squamous region.
zygomatic arch
recieves the condyle of the mandible, forming the moveable temporomandibular joint
mandibular fossa
surrounds the ext. ear canal; aka eardrum
tympanic region
ext. ear canal where sound enters
external auditory (acoustic) meatus
attatchment point for several tongue and neck muscles
styloid process
exhibits the mastoid process
mastoid region
anchoring site for some neck muscles; lump just posterior to the ear
mastoid process
between the styloid and mastoid processes, allows cranil nerve VII to leave the skull
stylomastoid foramen
NOT paranasal
mastoid sinuses
part of the temporal bone contributes to the cranial base; looks like a ridge
petrous region
suports the temporal lobes; formed by spenoid bone and petrous portions
middle cranial fossa -
allows passage of the internal jugular vein and 3 cranial nerves
jugular foramen
transmits the internal carotid artery into the cranial cavity
carotid canal
a jagged opening between the petroud temp. bone and sphenoid bone.
foramen lacerum
transmits cranial nerves VII and VIII
internal acoustic (auditory) meatus
location = middle of cranial floor
Sphenoid bone
within this are the spenoid sinuses
body -
make up the body of the sphenoid bone
sphenoid sinuses -
superior surface of the body has a saddle-shaped prminenece
sella turcica –
seat of the sella turcica saddle; forms a snug enclosure for the pituitary gland
hypophyseal fossa –
abutts anteroirly and posteriorly the fossa
tuberculum sellae -
abutts anteroirly and posteriorly the fossa
dorsum sellae -
the dorsum sellae terminates laterally in this
posterior clinoid processes -
horn-like form part of the floor of the anterior cranial fossa
lesser wings –
provides an achoring site for securing the brain within the skull
anterior clinoid processes
trough shaped; projects inferiorly from the junction of the body and greater wings
pterygoid processes -
lie anterior to the sella turcica; allow optic nerves to pass to eyes
optic canals -
a long slit between the greater and lesser wings. allows cranial nerves that control eye movements to enter the orbit
superior orbital fissure
anterior to sphenoid bone
Ethmoid bone
provide passage ways for branches of cranial nerve V to reach the face
foramen rotundum & foramen ovale
help form the roof the of the nasal cavities and the floor of the anteroir cranial fossa
cribriform plate -
transmits the middle meningeal artery, which serves teh internal faces of some of the cranial bones
foramen spinosum -
project laterally from the body forming 3 parts
greater wings
a triangular process between the cribriform plates
crista galli -
projects inferiorly in the median plane and forms the superior part of the nasal septum
perpendicular plate -
flanking the perpendicular plateand riddled with ethmoid sinuses
lateral mass -
sinues of the ethmoid bone
ethmoid sinuses -
protrude into the nasal cavity; delicatly coiled
superior and middle nasal conchae (turbinates) -
lateral surfaces of the ethmoids lateral masses
orbital plates
lower jaw
upper jaw
Maxillary Bones or Maxillae
carry the upper teeth
alveolar margins
means branches
where each ramus meets the body posteriorly
mandibular angle
two processes are separated by this
mandibular notch
insertion point for the large temporalis muscle that elevates the lower jaw during chewing
coronoid process -
articulates with the mandibular fossa of the temporal bone
mandibular condyle
openings on the lateral aspects of the madibular body
mental foramen
contains the sockets wehre the teeth are embedded
alveolar margin -
sockets for the teeth
a slight depression in the midline of the madibular body
mandibular symphysis -
one on the medial surface of each ramus; permits the nerves for tooth sensation to pass to the teeth in the lower jaw
mandibular foramina
project posteriorly from the alveolar margins; forms anterior 2/3 of the hard palate,
palatine processes
serves as a passage way for blood vessels and nerves
incisive fossa (foramen)
extend superiorly to the frontal bone, forming part of the lateral nose bridge
frontal processes
largest of the paranasal sinuses
maxillary sinuses
the maxillae articulate with the zygomatic bones via ___
zygomatic processes
permits the sygomatic nerve, macillary nerve and blood vessels to pass to the face
inferior orbital fissure
allows the infraorbital nerve and artery to reach the face
infraorbital foramen
lateral and posterior to maxillae
Zygomatic (malar) bones
located at bridge of nose
Nasal bones
anterior, medial walls of orbit
Lacrimal bones
delicate finger-nail; contribute to the medial walls of each orbit
lacrimal fossa
posterior hard palate
Palatine bones
complete the posterior portion of the hard palate
horizontal plates -
form part of the posterolateral walls of the nasal cavity and a small part of the orbitals
perpendicular (vertical) plates -
inferior nasal septum
Vomer bone
inferior lateral walls of nasal cavity
Inferior nasal conchae (turbinates)
anterior neck, inferior to mandible
support tongue above and larynx “voicebox” below
hyoid bone
a ring - lacks body or spinous process
ATLAS vertebrae
encloses spinal cord in vertebral foramen
vertebral arch
all vertebral foramina together form
vertebral canal (spinal
permits nodding
atlas vertebrae
allows pivoting of head
dens (odontoid process)
typical cervical vertebrae have ...(1-3)
a) bifid spinous process
b) transverse foramina
c) small body
ribs articluate to...
- facets on the transverse processes of vertebrae
- facets or demi-facets on the bodies of vertebrae
protrude superiorly and inferiorly from the pedicle-lamina juntions
superior articular processes
forms the sacroiliac joint
auricular surfaces
two joints of the pelvis
sacroiliac joint
anterosuperior margin of the first sacral vertebra
sacral promontory
mark the lines of fusion of the sacral vertebrae
transverse lines
penetrate the sacrum at the lateral ends of ridges and transmit blood vessels and spinal nerves
anterior sacral foramina