board review Flashcards
CN III- occulomotor
motor
eye muscles, pupil, lens
emergency pulse
adult- carotid
child- branchial
nonfunctional lingual cusp
mand first premolar
endoplasmic reticulum
site of cellular protein synthesis
ribosome- filled membranous network
where does the heartbeat originate from
SA node
CN VI- abducens
motor
eye muscles
tongue innervation
XII- motor nerve to muscles
V3- sensory to anterior 2/3
VII- taste to anterior 2/3 through chorda tympani
IX- sensory and tates to posterior 1/3
dentin
70% mineralized
forms greatest bulk of tooth
produced by odontoblasts from the dental papilla
lacunae
space in the bone matrix that is occupied by the osteocytes
PDL
suspensatory ligament attaching tooth to alveolar socket
composed of dense collagen and fibroblasts
attached to cementum by sharpeys fibers
mantle dentin
primary dentin- 1st layer of dentin immediately adjacent to the DEJ
what is the most medial bone of the orbit?
lacrimal
tooth with the longest root
mac canine
medial pterygoid
o- medical surface of the lateral pterygoid plate and maxillary tuberosity
i- innter sirface of the angle of the mandible
f- elevate and protrude
which system produces heat and helps maintain body temp
muscular
nucleus
stores DNA and directs all cellular activities
origin if the rests of malassez
hertwigs epithelial rooth sheath
enamel
96% mineralized
hardest tissue of the body
produced by ameloblasts
filaments and tubules
structural support
SCM
o- sternum and clavicle
i- mastoid process of the temporal bone
f- tilts and rotates the head
CN XI
premolar which commonly has three cusps
mand second (trying to be molar)
which gland is located bilaterally on the outer borders of the orbital cavity
lacrimal gland
circumvallate
8-12
just antior to sulcus terminalis
contain taste buds & glands von ebner
specialized mucosa
is the papillae of the tongue
what vein runs with the carotid artery
jugular vein
primary dentin
deposited before completion of the root
frontal process
forehead and frontal bone
median nasal process- center and tip of nose, nasal septum and globular process
lateral nasal process- sides of nose and infraorbital area
what passes through the foramen ovale
V3
thrid division- mandibular
which tooth has a non functional lingual cusp
mandibular first premolar
posterior 1/3 of tongue and hyoid bone develop from?
2nd and 3rd branchial arches
stafnes defect
developmental concavity of the mandibular cortical plate and is associated with the submandibular gland
what is the medial wall of the orbit?
ethmoid bone
tooth which most often ails to develop
3rds or max lateral incisor
masticatory mucosal tissue
keratinized and protects the attached gingiva and hard palate.
ends at the mucoginigval margin
lacrimal nerve controls
the upper eyelid, conjunctiva and lacrimal gland
what is the posterior wall of the orbit?
sphenoid bone
CN XII hypoglossal
motor
muscles of the tongue
masseter
o- zygomatic arch
i- outer surface of the mandible
f- elevate
what is the end of the odontoblastic processes that crosses the DEJ
enamel spindles
ameloblasts produce
enamel
what is the articular disc
fibrous pad of dense collagen tissue
prevents bone to bone contact
enamel spindles
ends of odontoblastic processes with cross the DEJ
excessive overbite
when incisal edges of the maxillary incisors extend to the cervical third of the mandibular incisors
membrane
controls the passage of materials into and out of the cell
what muscle makes up the floor of the mouth?
mylohyoid muscle
circumpulpal dentin
primary dentin- remaining dentin adjacent to the pulp
first permanent tooth erupts
around 6 years old
first molar
V1
ophthalmic
sensory
leaves through the superior orbital fissure
upper third of face
gungiform
fewer, larger
contain taste buds
deoxygenated blood flow of the heart
SVC & IVC from body right strium tricuspid valve right ventricle pulmonary artery to lungs
cytoplasm
watery gel enclosed by the membrane
submental node
drain from the mandibular incisors, tip of tongu, midline of the lip, chin, floor of mouth
parts of tmj
temporal bone, mandible, articular disc, capsule
which is the space between the gingiva and tooth
gingival sulcus
how do the PDL attach to cemetum
sharpeys fibers
deep cervical nodes (superior and inferior)
drains submandibular nodes, 3rds, and wall of the throat
external carotid
everything else- teeth, muscles of mastication, tongue, face, lips
filliform
keratinized papillae to protect the tongue
no taste buds
most numerous
lysosomes
phagocytosis and digestion
intrinsic tongue muscles
start and end within the tongue
determine shape of tongue
superior and inferior longitudinalis, transverse and vertical groups
most numerous fiber
oblique
what bone contains the paranasal sinus
sphenoid bone
pterygoid plexus
drains to form the maxillary vein
temporalis
o- temporal fossa
i- coronorid process
f- retract and elevate
golgi bodies
packages ceullular protein product for secretion
maxillary first molar oblique ridge rins from
distobuccal cusp to mesiolingual cusp
foliate
posterior, lateral border
contain tate buds
common side of oral cancer
sagittal plate
divides into left and right halves
V2
maxillary
sensory
leaves through foramen rotundum
mid face
CN X- vagus
sensory & motor
smooth muscles and glands of the body
cardiac muscle
parotid gland
produce 25% saliva
stensons duct
serous secretion (contains amylase to break down starches)
CN IX
prostaglandin F
responsible for causing uterine contractions
tooth with the most unique anatomy
primary first mandibular molar
foramen caecum
found at the center or point of the sulcus terminalis and is the side of the embryonic origin of the thyroid gland
CN IV- trochlear
motor
eye muscles
what muscles of mastication open the mouth
lateral pterygoid with the help of hyoid muscles
tooth which frequently has a 5th cusp
mand first molar
max first molar- cusp of carabelli
CN I- olfactory
sensory
sense of smell
lateral pterygoid
o- lateral surface of the lateral pterygoid plate and infratemporal surface of the sphenoid bone
i- tmj disc and neck of the mandibular condyle
f- protrude, depress and side to side motion
which is the three major branches of the external carotid artery
maxillary, lingual and facial
what is the pacemaker of the heart
SA node
suprahyoid muscles
open the mouth (depress the mandible)
salivary glands
exocrine glands (have ducts) lined by stratified cuboidal epithelial cells
CN VIII- vestibulocochlear (AKA auriculotemporal)
sensory
sense of balance and hearing
nonemergency pulse
adult- radial
child- branchial
which is a tough connective tissue binding fascicles together
perimysium
internal carotid
skull, eye, brain
when does development of the face begin
week 3
CN XI- accessory
motor
trapezius, SCM, pharynxm larynx
sublingualr caruncle
contains the duct oepnings for submandibular and sublingual salivary glands
CN IX- glossopharyngeal
sensory & motor
taste and sensation for the posterior 1/3 of tounge
innervation to the parotid gland
mylohyoid
comprises flood of the mouth
attaches to the mylohyoid ridge (internal oblique ridge)
mandibular second molar most likely exhibits
4 cusps
2 roots
last deciduous tooth
macillary cuspid or mand second molar
oral mucosa
composed of stratified squamous epithelial layer and a connective tissue lamina propria, separated by a basement membrane
whartons duct
submandibular gland
what are the parts of the temporal bone?
mastoid process styloid process articular fossa and eminence stylomastoid foramed pertrous portion- houses hearing components
odontoblasts form
dentin
tooth most often affected by microdontia
mac lateral incisor
widest and strongest root
mesial root of mandibular first molar
CN II- optic
sensory
sense of sight
cuspid (canine) with occasionally bifucated root
mandibular- F/L
most often missed mesial coronal and root concavity
max first premolar
lining mucosa
not keratinized
included alveolar, vestibular and buccal mucosa and flood of the mouth
mixed dentition
6-13 years old
trapezius
o- occipital and vertebral bones
i- scapula and clavicle
f- rotate and elevate the shoulder
CN XI
premolar most often having 2 roots
max first premolar
mitochondira
powerhouse, resposible for cellular respiration
what passes through the foramen rotundum
V2
second division- maxillary
muscles of mastication innervation and blood supply
innervation- V3
blood supply- maxillary artery
infrahyoid muscles
stabilize the hyoid bone
what is the lateral wall and floor of the orbit?
zygomatic
tooth most likely to have 2 canals
mand first molar (mesial root)
what passes through the superior orbital fissure
V1
first division- opthalmic
CN VII- facial
sensory & motor
muscles of facial expression, taste (anterior 2/3 of tongue via chorda tympani), sublingual & submandibular salivary glands
when is the upper lip complete
6-8 weeks
formed by the fusion of the median nasal prcess and right & left maxillary processes
which muscle inserts into the coronoid process of the mandible
temporalis
tooth most likely to have divergent roots
maxillary first molar
orbital bones
frontal sphenoid ethmoid maxilla zygomatic palatine larcimal
submandibular node
drains submental node and remaining teeth
may or may not include 3rds
stensons duct
parotid duct
cementoblasts form
cementum
what is the medial floor if the orbit?
maxillae
odontoblastic processes are found
in dentinal tubules
when is the primary dentition generally complete
30 months
20 teeth
what muscles of mastication close(elevate) the mouth
temporalis, medial pterygoid and masseter
buccinator
not a muscle of mastication
keeps food on the chewing surface of the teeth
o-pterygomandibular raphe
i- muscles of the lip
cementum
50% mineralized (like bone) produced by cementoblasts located in the PDL contains cementocytes (trapped in cementoblasts) in lacune thicker at apex thinner at cervical portion acellular- @cej cellular- @apex nourised by the PDL
bartholins duct
sublingual gland
secondary dentin
develops after the tooth is in occlusion
makes pulp smaller
hamulus projects from the
medial pterygoid plate
CN V- trigeminal
sensory & motor
ophthalmic, maxillary & mandibular divisions
lines of retzius on enamel
incremental lines from mineralizaiton
submandibular gland
produces 65% saliva
wharton’s duct
mixed scretions
CN VII
first branchual arch
maxillary process- lateral palatine processes, upper parts of cheek, side of upper lip
mandibular process- lower jaw, lower parts of the face and lower lip, anterior 2/3 of tongue
what is the floor of the orbit?
palatine
cell
fundamental functional unit of the body
when does the palate develop
between 6-12 weeks
formed by the fusion of the globular process with the left and right palatal shelves.
it separates the stomodeum into and upper and lower cavity
circle of willis
assciated with the brain
tooth likely to have lingual carries
mac lateral incisor
oxygenated blood flow of the heart
from lungs from the pulmonary vein left artium bicuspid (mitral) valve left ventricle aorta to body
foramina of the sphenoid bone
superior orbital fissure
foramen rotundum
foramen ovale
extrinsic tongue muscles
originate elsewhere and insert into the tongue
controls the position of the tongue
hyoglossus, styloglossus and genioglossus
platoglossus- innervated by X & XI
network of tubules and sacs found within muscle fibers
sarcoplasmic reticulum
V3
mandibular sensory &motor leaves through formaen ovale enters mandible through mandibular foramen motor- muscles of mastication sensory- lower teeth
sublingual gland
produces 10% of saliva bartholins duct multiple ducts of rivinus mixed secretions CN VII