Test 1 ch 1-3 Flashcards
1st sign of disease?
bleeding gums
palpate
examine by touch; helps determine any abnormaities
Anterior
or ventral; towards the front
Posterior
or dorsal; towards the back
____ are medial to the ears?
eyes
____is anterior to the ears?
nose
____are posterior to the nose?
ears
medial
towards the middle
Lateral
towards side or outside
Buccal
cheek
Labio-/labial
pertains to the lips
Optic/ophthalmic
pertains to the eyes
Naso-/nasal
pertains to the nose
Auricle, acoustic
pertains to the ears
Cutaneous
pertains to the skin
Mental
pertains to the chin
External
outside
internal
inside
superior
above, greater, larger
inferior
below, smaller
supra
above, over
infra
below, under
sub
below; subcutaneous means below the skin
superficial
on surface
deep
far below surface
artery
blood vessels that carry blood away from heart
veins
blood vessels that carry blood back to heart
nerve
fibers that carry impulses between the brain and parts of the body; allows you to feel touch, pain, etc. and help initiate movement
Innervation
pertains to nerve supply
what are the areas most affected by illness/disease?
skin, pupils, and eyelids
how is skin affected by illness/disease?
loose connective tissue has less support than fibrous; easily distored by edema
what is edema?
swelling due to accumulation of fluid
how are pupils affected by illness/disease?
pupils normally dilated in darkness and constrict in light. pupils that dilated in light is NOT normal
how are eyelids affected by illness/disease?
edema usually shows up here first
what is the oral cavity?
inner portion of the mouth
where is the oral
vestibule?
area between the cheek and buccal surfaces of teeth; also area between lips and facial surfaces of teeth
Oral cavity proper
space between lingual surfaces of teeth
lips external to____
the oral cavity
Nasolabial sulcus
groove between upper lip and check (smile lines)
Philtrum
vertical groove of upper lip; between nose and upper lip
Tubercle
thicker area in center of upper lip
Labiomental groove
dip between lower lip and chin
labial commissure
angle of mouth
vermillion zone
(also called red zone shown in orange)- transitional zone between skin of lips and mucous membranes of oral cavity
why is vermillion zone red?
bc of capillaries near surface
vermillion border
transitional zone between lips and skin (thin line around edge of lips
cheeks made of what muscles?
made up of buccinator going horizontally and masseter going vertically
buccal fat pad
fat tissue between buccinator and masseter (gives ppl round faces)
Labial frenum
fold of tissue between lip and alveolar mucosa; one in maxillary and mandible
Buccal frenum
fold of tissue between lip and alveolar mucosa; one in maxillary and mandible/ canine and premolar
Maxillary tuberosity
- small, round area of bone posterior to last maxillary tooth
Retromolar area
triangular are of bone posterior to last mandibular tooth
Palate
roof of mouth; superior border of oral cavity
Hard palate
Bony whiter anterior arched portion;( firmly attached to bone/ pale color)
Palatine raphe
midline ridge of hard palate from incisive papilla
Palatine rugae
transverse palatine folds; ridges that extend laterally
Soft palate
made of muscle and loosely woven connective tissue
Sulcus terminals
v shaped sulcus separating anterior 2/3 from posterior 1/3
Foramen cecum
posterior end of sulcus terminals; pit which makes the site of origin of thyroid gland (top of the v shape of sulcus terminals)
Median lingual sulcus
longitudinal depression down the midline of tongue
Papillae
aka taste buds; small elevations on tongue
circumvallete
arranged in a line anterior & parallel to the V-shaped sulcus terminalis; they are surrounded by a trough
Fungiform papillae
- bright red projections on (tip) apex of tongue; sweet/sour/salty; tiny in size
Foliate papillae
side of tongue; sour; lateral surfaces
Filiform
small elevations on body of tongue; rarely has taste buds
underside of tongue
aka sublingual region; mucous membrane thin and vascular; can see with naked eye the deep lingual artery which supplies anterior 2/3 of tongue and the lingual veins that carries blood back to heart
Lingual frenum
fold of mucous membrane that goes from root of tongue to floor of mouth
Sublingual sulcus
horseshoe shaped area under tongue surrounding lingual frenum
purpose of salivary glands?
- mix with food and make easier to swallow
- aid in digestion (begins)
- lubricate mucous membrane of mouth
types of salivary glands?
serous
mucous
mixed
serous salivary gland
thin and watery saliva; contains amylase (digestive enzyme that breaks down starches)
Mucous
thick and ropey; still 99% water; contains mucins that break down starches; contains proteins that inhibit caries and periodontal disease
Mixed
some salivary glands produce both types
major salivary glands
parotid
submandibular
sublingual
parotid salivary gland (size and location)
huge; located anterior to ear; lays on top of masseter muscle
what type of saliva does the parotid gland produce?
serous saliva
duct name for the parotid gland?
Stenson’s Duct; travels on outside of masseters and then pierces buccinator and opens in check opposite of maxillary 2nd molar
what infection affects parotid gland?
mumps
Submandibular gland: location, produces?
-located medial to mandible, posterior part of bud within submandibular fossa(can feel with external oral exam
-Produces 60-65% of resting saliva volume (for lubrication)
-
what duct is affiliated with submandibular gland?
Wharton’s duct; runs anterior from gland and opens into mouth at sublingual caruncle at base of lingual frenum under tongue
Sublingual gland: size, location, produces?
smallest; anterior floor of mouth by canines; mostly mucous (sublingual caruncle)
-Produces: 10% of saliva
what duct is affiliated with sublingual gland?
Bartholin’s duct
minor: : Rivinian ducts
- opens same place as submandibular gland
purpose of minor salivary glands
mainly for lubrications of mucosa
Labial glands
located in submucosa of lips (midline)
Buccal glands located?
located in buccal mucosa; more in posterior
Lingual glands
located on back of tongue in troughs that surround circumvallete papillae (called glands of Von Ebner) and under surface of tongue; serous
Sialolith
salivary stone-blocks drainage of saliva from duct
-causes gland enlargement
Major gland lesion
called ranula
Minor gland lesion
called mucocele
Incisive glands
located on floor of mouth behind mandibular incisors
Palatine glands located?
entire region of soft palate and posterior part of hard palate
anatomic nomenclature
system of names for anatomic structures
anatomic position
body standing erect, arms at sides with palms and toes directed forward and eyes looking forward
midsagittal plane
also median
divides body into equal right and left halves
sagittal plane
divides the body parallel to midsagittal plane
coronal plane
also frontal plane
divides body into posterior and anterior parts
transverse plane
also axial
divides body horizontally into superior and inferior
eyes are ___to the ears
medial
ears are ___to the eyes
lateral
proximal
area closer to the midsagittal/median plane
distal
area farther from the midsagittal/median plane
a structure on the same side of the body as another structure is ?
ipsilateral
a structure on the opposite side of the body from another structure is?
contralateral
the skin is ___ to the bones
superficial
bones are ___ to the skin
deep
what is surface anatomy?
the study of the structural relationships of the external features of the body tot he internal orangs and parts; provides essential landmarks
what are the regions of the head?
frontal, parietal, occipital, temporal, auricula, orbital, nasal, infraorbital, zygomatic, buccal, oral, and mental
front region includes:
forehead and area superior to eyes
supraorbital ridge:
directly inferior to each eyebrow
glabella
smooth elevated area between eyebrows
frontal eminence
prominence of forehead (most)
parietal region and occipital region:
both covered by scalp and defined b the related deeper bones
temporal region
contains the temple; superficial side of the head; posterior to each eye (surface area of head and behind the eyes)
auricular region
each side of head containing external ear
external ear is composed of?
auricle or oval flap of the ear and centrally located external acoustic meatus
external acoustic meatus (EAM)
tube which sound waves are transmitted to middle ear within skull
tragus
smaller flap of tissue of the auricle anterior to the external acoustic meatus
antittragus
tissue opposite of tragus
intertragic notch
small groove between tragus and antitragus
orbital region includes:
each side of the head, eyeball, orbit (eye socket)
width of each eye is?
usually same distance between the eyes
pupil?
opening center of the iris
lacrimal glands located and produce?
behind each upper eyelid deep within the orbit. they produce lacrimal fluid (tears)
conjunctiva
delicate and thin membrane lining the inside of the eyelids and the front of eyeball
lateral cantus
outer corner where eyelids meet
medial cantus
inner corner of the eye
nasal region main feature
external nose
root of nose
located between the eyes
nasion
inferior to glabella, superior to root of nose (dip on bridge)
infraorbital region
located inferior to the orbital region and lateral to nasal region
zygomatic region
overlies the cheekbone
zygomatic arch also known as ?
cheek bone
buccal region
composed of soft tissue of the cheek
masseter muscle
muscle on cheek, felt when teeth are clenched
blood supply of the lip
comes from superior and inferior labial arteries that branch from the facial arteries
what nerve provides sensation to lower lip
mental nerve
angle of the mandible
sharp bend of the lower jaw
what marks the anterior border of the oral cavity?
lips
what marks the posterior border of oral cavity?
throat/pharynx
lateral border of oral cavity?
cheeks
superior border of oral cavity
roof of the mouth
inferior border of oral cavity
floor of the mouth
gingiva
also called gums
vestibular fornix
deep within each vestibule; where the pink and thick labial or buccal mucosa meets the redder and thinner alveolar mucosa
interdental gingiva
gingival tissue between adjacent teeth adjoining attached gingiva; each individual extension being an interdental papilla
pterygomandibular fold
vertical fold of tissue that extends from the junction of the hard and soft palates to the medial side of the mandibular ramus
plica fimbriata
lateral to the deep lingual veins on each side ; fold with fringelike projections
relation of the tongue dorsal and ventral mean?
dorsal top of tongue
ventral underside of tongue
fauces (anterior and posterior)
opening from the oral region into the oropharynx; laterally on each side by folds of tissue created by the underlying muscles
palatine tonsils
located between each of fauces of the pillars
sternocleidomastoid muscle
large strap muscle; divides each side of the neck diagonally
thyroid cartilage
visible as the laryngeal prominence aka Adams apple
superior thyroid notch
thyroid cartilage is superior to laryngeal prominence (adams apple)
hyoid bone
located anterior midline superior to the thyroid cartilage
Bones of the skull____, form the____ , and participate in the growth of the____.
surround the brain
facial skeleton
jaws
how many bones in the skull (excluding the 3 bones of ear)
22 bones
8 bones of the neurocranium:
o Frontal bone o Sphenoid bone o Ethmoid bone o Occipital bone o Temporal bones o Parietal bones
neurocranium
brain
which neurocranium bones are single?
frontal
sphenoid
ethmoid
occipital
which neurocranium bones are paired?
temporal bones and parietal bones
14 viscerocranium bones
mandible vomer nasal lacrimal zygomatic inferior nasal conchae palatine bones maxillae
viscerocranium means
face
which are the single viscerocranium bone
mandible and vomer
paired viscerocranium bones
o Vasal bones o Lacrimal bones o Zygomatic bones o Inferior nasal conchae o Palatine bones o Maxillae (paired)
what does the tympanic surrround?
external acoustic meatus; small, irregular shaped
temporal bone includes:
squamous portion, tympanic, petrous portion, styloid process
what is the squamous portion?
large fan-shaped flat part on each of temporal bones
petrous portion
inferiorly located and helps form the cranial floor; bottom part mastoid process
what is the styloid process?
pointed spicule of bone that serves as point of attachment for muscles and ligaments
what are sutures?
JOINT in the cranium. Appears as a jagged line where two bones meet. Very slightly moveable; absorbs force of blow to the heard. Wider in infants (lots of falls)
what are the different types of sutures?
squamous, coronal, sagittal, and lambdoidal
what does the squamous suture do?
joins parietal and temporal bones
what does the coronal suture do?
joins frontal and parietal bones
what does the sagittal suture do?
joins the parietal bones
what does the lambdoidal suture do?
joins the occipital and parietal bones
what does foramen mean?
hole
where is the bregma?
intersection between coronal and sagittal sutures
where is lambda?
intersection of sagittal and lambdoidal sutures
where is the vertex ?
highest point on top of skull, along sagittal suture
where is the parietal eminence?
highest point on each parietal bone
where is the temporal fossa?
indentation on sides of head covering front, parietal, sphenoid, and temporal bones (contains body of temporalis)
what is the area eyes of the top of the skull
frontal bone
area below the eyes to the occlusal plane comprises
the paired zygomatic and paired maxillae
what do the nasal bones form?
bridge of the nose
lower jaw is formed by?
mandible
what is the piriform aperture ?
anterior opening of cavity (hole you see when you slice off front of nose)
where is the landmark for the anterior nasal spine?
maxilla
what forms the nasal septum?
cartilage, vomer, and ethmoid
cheek is formed by?
zygoma, zygomatic arch
Alveolar processes
sockets that hold teeth, covered by gingiva; resorption occurs (wearing away ) with periodontal disease and tooth loss
Canine eminence
elevation of bone over canine root
Maxillary tuberosity
posterior to 3rd molar
Incisive foramen
opening for nasopalatine nerve which innervates hard palate, covered by incisive papilla
Median palatine suture
joins right and left maxillae
Transverse palatine suture
joins maxilla and palatine bones
extends off the medial pterygoid plate
Hamulus
Pterygoid or scaphoid fossa
- (more a large indentation than a groove)-found between the medial and lateral pterygoid plates
Foramen ovale means
oval hole
Foramen rotundum means
round hole
Foramen ovale found
in sphenoid bone; mandible division of the 5th cranial nerve of trigeminal nerve
Carotid canal is on what none? Carries what?
in temporal bone-carries the internal carotid artery
Stylomastoid foramen found where? Carries what ?
-temporal bone-carries the facial or 7th cranial nerve
Jugular foramen found where ? Carries what ?
between occipital and temporal bones- carries the internal jugular vein and 9th, 10th, and 11th cranial nerves
Foramen magnum
in occipital bone- carries spinal cord and 11th cranial nerve
5th cranial nerves
trigeminal nerve
7th cranial nerve
facial nerve
Mandibular fossa found on what bone?
on temporal bone; may be called glenoid fossa
Submandibular fossa contains ?
contains submandibular salivary gland
Mandibular foramen carries? Found on what bone ?
inferior alveolar nerve and artery
Lingula
protects mandibular foramen
Mylohyoid groove
indentation going anterior from mandibular foramen; mylohyoid nerve travels in it
Mylohyoid line
ridge on the medial surface of the mandible where the mylohyoid muscle attaches
Back notch of ramus
condyle
hyoid bone located?
anterior of neck
what bone is hyoid bone connected to?
none
how is hyoid held in place?
by muscles and ligaments
hyoid bone used to?
allows mobility for speech and swallowing
Great and lesser horns oh hyoid bone ?
points of attachments for muscles and ligaments
Temporomandibular joint (TMJ)
the articulation (which means to unite by a joint) between the temporal bone and the mandible. Specifically, the condyle of the mandible articulates with the mandibular fossa of the temporal bone
Synovial fluid
helps lubricate joint
any prominence on bony surface
process
specific type of prominence on bony surface
condyle
rounded projection from bony surface
head
large rough prominence on bony surface
tuberosity
prominence shaped like a bridge
arch
hornlike prominence on bony surface
cornu
small rounded eminence on bony surface
tubercle
prominent border or ridge on bony surface
crest
straight ridge on bony surface
line
blunt or sharply pointed projection
spine
one type of depression with indentation on the edge
notch
groove for blood vessels or nerves on bony surface
sulcus
generally deeper depression on bony surface
fossa
pitlike depression on bony surface that is small
fovea
flat structure of bone
plate
opening like a window in bone
foramen
narrow and cleftlike opening in bone
fissure
smaller opening in bone into a hollow organ or canal
ostium
narrow opening in bone
aperture
type of canal in bone
meatus
longer narrow tube-like opening in bone
canal
area where bones are joined to each other
articulation
union between two or more bones
joint
union of bones with a jagged line
suture
broken bone due to physical force
fracture
mineralized structure protecting the internal tissue
bone
each middle ear has how many bones? what are they?
3-malleus, incus, and stapes
function of the 3 bones of the ear?
transmit and amplify vibrations to the inner ear by way of the tympanic membrane or eardrum
which suture looks more serrated looking than others?
lambdoidal suture
what bones form the orbit?
frontal, ethmoid, lacrimal, maxilla, zygomatic, and greater wing of spehnoid
functions of each bone of the orbit? (etc roof, floor, walls)
frontal is the roof ethmoid-greatest part of medial walls lacrimal-anterior medial corner maxilla- floor zygomatic- anterior lateral walls greater wing of sphenoid- posterior of lateral wall
what is a bony prominence?
areas on bone that are close to skins surface; barely have any cushioning) ex. elbow, back of head, shoulder)
describe growth of upper face
occurs at sutures between the maxillae and other bones; and bony surfaces
describe growth of lower fac
occurs in bony surfaces of mandible and at head of its condyle
growth occurs in all bones of skull except?
middle ear bones
what is the orbital apex? what is it composed of?
deepest part of the orbit; composed of lesser wing of sphenoid and palatine bone
orbital apex has round opening called?
optic canal
what passes through the optic canal?
2nd cranial nerve/optic nerve; ophthalmic artery
lateral to optic canal is ?
superior orbital fissure
what does the superior orbital fissure do?
connects the orbit with the cranial cavity
what travels through the superior orbital fissure?
the 3rd cranial/ophthalmic nerve and vein
where is the inferior orbital fissure located?
between the greater wind of sphenoid bone and maxilla
what travels through the inferior orbital fissure?
infraorbital and zygomatic nerves and inferior ophthalmic vein
describe orbital rim
rectangular shaped with rounded corners; its margin discontinuous at the lacrimal fossa
what bones contribute to the orbital rim
frontal, zygomatic and maxilla
what is the zygomaticomaxillary suture?
notch found between 2 bones that form the infraorbital rim: zygomatic bone with its maxillary process and maxilla with its zygomatic process
what is the temporal fossa
formed by parts of several bones; contains temporalis muscle
zygomatic arch forms union of ?
slender zygomatic process of temporal bone and broad temporal process of zygomatic bone
what are fovea palatine and where are they located
2 small depression on each side of midline; located anterior to junction of the hard and soft palate; no anatomic function
frontal bone fused around what age?
5 or 6 years of age
what are the paired cranial bones?
Parietal and Temporal
where is the occipital bone located?
forms the posterior part of the skull and base of cranium
describe the occipital bone
irregular four-sided bone that is somewhat curved
what bones does the occipital bone articulate with?
Parietal bones
temporal bone
and sphenoid bone
first cervical vertebra/atlas
largest bone located on occipital bone that is usually filled with cartilage ? and what does it allow to pass through?
foramen magnum; allows spinal cord, vertebral arteries, cervical part of the 11th cranial /accessory nerve pass
where and what are the occipital condyles?
located on the lateral part anterior to the foramen magnum. they are curved and smooth projections
occipital condyles have what time of articulation to where?
occipital condyles have moveable articulation with with atlas (1st vertebrae)
what is the basilar part of the occipital bone?
a four-sided plate anterior to the foramen magnum
what is the suture name that joins the parietals and occiptal? v shaped
lambdoidal suture (single)
What canal is located on the occipital bone? and what does it allow passage to?
the hypoglossal canals; passage to 12th cranial nerves and blood vessels
what is the suture that extends across the skull between the frontal bone and each parietal bone?
coronal suture (paried)
where and what is the anterior fontanelle?
located intersection where frontal and both parietal bones meet; called “soft spot” is diamond shaped
suture that extends from the anterior to posterior of the skull at midline of parietal bones?
sagittal suture
describe orbital walls and which bones are they composed of
frontal bone forms the roof
ethmoid bone is greatest part of medial wall
lacrimal is the anterior medial corner
zygomatic anterior part of lateral wall
greater wing of sphenoid is posterior part of lateral wall maxilla is the floor
what is the deepest part of the orbit?
orbital apex
what is the orbital apex composed of?
both lesser win of sphenoid and palatine bone (a small inferior part
what is the round opening in the orbital apex?
optic canal
location of the optic canal?
lies between the two roots of the lesser wing of the sphenoid bone
what passes through the optic canal?
2nd cranial/ optic nerves to reach the eyeball
how are bones in the skull divided?
cranial bones and facial bones
suture that joins frontal and nasal bones?
frontonasal suture
suture that joins anterior maxillae and posterior palatine?
median palatine suture
suture that joins temporal and parietal?
squamosal
suture that joins temporal and zygomatic?
temporozygomatic suture
suture that joins maxillae and palatine bones?
transverse palatine suture
suture that joins zygomatic and maxillae?
zygomaticomaxillary
Name the facial bones
inferior nasal conchae, larcrimal, mandible, maxillae, vomer, and zygomatic bones
which facial bones are paired?
inferior nasal conchae, lacrimal, maxillae, and zygomatic
anterior opening of the nasal cavity?
piriform aperture
bones that form lateral boundaries of nasal cavity?`
maxillae, 3 nasal conchae (superior, middle, and inferior)
cheekbone area name? and suture of area? and what bones form this area?
zygomatic/zygomatic arch
suture: temporozygomatic
bones: zygomatic process of the temporal bone and temporal process of the zygomatic bone
what is the nasal meatus?
distinct air passages of the lateral nasal cavity located inferior to each nasal conchae.
temporomandibular joint articulates with?
temporal bone and mandible
sutures located on hard palate?
transverse palatine suture
what bones form the hard palate?
the palatine processes of the maxilla (anterior) and the horizontal plates of the palatine bones (posterior)
located posterior border of the hard palate ?
posterior nasal apertures; formed by vomer, horizontal plate of palatine bone, medial pterygoid plate of palatine, medial pterygoid plate of sphenoid, and body of sphenoid
process of the sphenoid bone?
lesser wing, greater wing, hamuli, pterygoid
plates of the sphenoid bone?
medial and lateral pterygoid plates
what fossa is located between the sphenoid bone?
pterygoid fossa is located between the medial and lateral pterygoid plates
large anterior ovale opening on sphenoid bone; what passes through it?
foramen ovale; mandibular nerve (3rd division) of 5th cranial/trigeminal nerve
smaller opening on sphenoid bone; what passes through it?
foramen spinosum; carries middle meningeal artery into cranial cavity
what spine is located near foramen spinosum?
spine of the sphenoid bone (posterior extremity of sphenoid bone)
large irregular shaped opening on external surface of skull; normally filled with cartilage
foramen lacerum
where is the carotid canal located and what does it carry?
posterolateral to the foramen lacerum; round opening of petrous part of temporal bone; carries the internal carotid artery and carotid plexus of nerves
pointed projection of temporal bone
styloid process
what foramen is located immediately posterior to the carotid canal?
stylomastoid foramen
what is the stylomastoid foramen an opening for?
7th cranial/facial nerve exit from skull
what and where is the jugular foramen?
just medial to the styloid process/visible if skull is titled to one side; opening for internal jugular vein ad 3 cranial nerves: 9th/glossopharyngeal, 10th cranial/vagus, and 11th/accessory nerve
where is the cribriform plate and what passes through it?
located internal surface of skull multiple foramina for 1st cranial or olfactory nerve
where is the foramen rotundum and what passes through it?
Sphenoid bone ; opening for maxillary nerve of 5th cranial/trigeminal nerve
where is the internal acoustic meatus and what passes through it?
Temporal bone ;opening for 7th cranial/facial nerve and 8th cranial /vestibulocochlear nerve
where is the hypoglossal canal and what does it carry?
Occipital bone ; opening for 12th cranial/hypoglossal nerve
what bones form lateral walls of skull and what do they articulate with?
temporal bones; articulates with zygomatic, parietal , occipital, sphenoid, mandible
3 parts of temporal bone?
squamous, tympanic, and petrous
what does the frontal bone articulate with?
parietal, sphenoid, lacrimal, nasal, ethmoid, zygomatic and maxilla
supraorbital notch located?
medial part below the supraorbital rim
what do the parietal bones articulate with?
occipital, frontal, temporal, sphenoid
what bones form zygomatic arch
temporal process of zygomatic and zygomatic process of temporal
what is the landmark on the inferior part of the temporal bone that is part of the articulation of the tmj?
articular fossa on inferior surface of zygomatic process of temporal bone
single cranial bone that at midline that adjoins vomer
sphenoid bone
what does the sphenoid bone articulate with?
frontal, parietal, ethmoid, temporal, zygomatic, palatine, vomer, occipital, and maxillae
paired facial bones that form bridge of the nose
nasal bones
nasal bones articulate with?
maxillae and frontal
what pair of bones project off the maxillae for form lateral walls of nasal cavity?
inferior nasal conchae
what is inferior nasal conchae composed of?
fragile thin and spongy bone curved on itself
what do the inferior nasal conchae’s articulate with?
ethmoid, lacrimal, palatine and maxillae
what forms the cheekbone?
paired zygomatic bones
zygomatic bones articulate with?
frontal, temporal, sphenoid, maxilla
what bone forms lateral part of orbital wall?
frontal process of the zygomatic bone
maxilla articulates with?
frontal, lacrimal, nasal, inferior nasal conchae, vomer, sphenoid, ethmoid, palatine, and zygomatic
what bone covers upper jaw teeth?
covered by prominent facial ridge of bone, part of alveolar process of maxilla
free moveable bone of skull?
mandible
bony prominence of the chin?
mental protuberance
opening on external surface of lower jaw (between apices of mandibular 1st and 2nd premolar)
mental foramen
what does mental foramen carry?
mental nerve and blood vessels into mandibular canal
part of lower jaw that contains roots?
alveolar process of the mandible
depression located between coronoid process and condyle of the mandible
mandibular notch
what is the external oblique ridge?
the bony demarcation where ramus and body of mandible join
small midline projections on internal surface of mandible
genial tubercles which serve as muscle attachments
where is mylohyoid located and what its function?
landmark located on medial surface of mandible; point of attachment for mylohyoid musle
shallow depression located inferior to mandibular posterior teeth and similar depression superior part of mylohyoid line?
sublingual fossa
opening on internal surface of the ramus?
mandibular foramen
mandibular foramen opening for?
mandibular canal
what groove is near mandibular foramen? what travels in it?
mylohyoid groove; mylohyoid nerve and blood vessels pass through