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Head and Neck Anatomy
test 1 review
83
Dentistry
Undergraduate 3
09/25/2013

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Cards

Term
what is the only moveable bone in the skull?
Definition
mandible
Term
what is a moveable bone in neck?
Definition
hyoid bone
Term
how does the mandible move?
Definition
the condyle of mandible moves within articular fossa of temporal bone
Term
what is the best view of the  is squamous suture
Definition

lateral view on both sides

(between parietal and temporal bones)

Term
why is the pterygoid process of the sphenoid an important feature of the skull to the dental professional?
Definition
pterygoid process of sphenoid serves as an attachment for muscles of mastication
Term
is the pterygoid process visible in maxillary or mandibular perapical radiographs?
Definition
no not visible on either
Term
what bony landmark does the sense of smell carry through olfactory nerves?
Definition
the cribiform plate is the superior horizontal portion of ethmoid bone that is perforated for passage of olfactory nerves.
Term
what is the crista galli an area of attachment for?
Definition
the crista galli is vertical projection of ethmoid bone and attaches through meninges.
Term
what does the perpendicular plate of the ethmoid bone form?
Definition
part of nasal septum
Term
which bony feature increases the surface area in nasal cavity?
Definition

inferior nasal conchae

it is scroll shaped and increases surface area covered with mucous membranes.

Term
what portion of orbit is small fragile bones that form a portion of anterior medial wall of orbit?
Definition
lacrimal bone
Term
what forms bridge of nose?
Definition
nasal bones
Term
name some facial bones that are paired
Definition

maxillary

lacrimal

zygomatic

Term
what is a paired cranial bone?
Definition
maxillary
Term
what suture articulates the occipital and parietal bone?
Definition
lambdoidal
Term
what does the coronal suture connect?
Definition
parietal and frontal bones
Term
what does the squamous suture connect?
Definition
parietal and temporal
Term
what does the sagittal suture connect?
Definition
parietal and parietal at top of head
Term
what is the bony landmark is a depression located between the coronoid process and ramus of mandible?
Definition
mandibular notch
Term
what is located on anterior border of ramus inferior to coronoid process?
Definition
coronoid notch
Term
what is located on internal surface of ramus?
Definition
mandibular foramen
Term
what is located inferior to the mylohyoid line or ridge on the body of mandible?
Definition
submandibular fossa
Term
where does th condyle of the mandible move in relationship to the temporal bone?
Definition
articular fossa of temporal bone
Term
what landmark of mandible is most inferior?
Definition
submandibular fossa
Term
where is retromolar triangle?
Definition
about same location of bone where retromolar pad is to teeth.
Term
what is located on internal surface of ramus, superior to body of mandible?
Definition
lingula
Term
The mylohyoid line is located where?
Definition
internal surface of body of mandible superior to submandibular fossa.
Term
what is the process that forms the lateral portion of the infraorbital rim?
Definition
maxillary process of zygomatic bone
Term
the temporal process of the zygomatic bone articulates with the temporal bone and forms what?
Definition
zygomatic arch
Term
what does the frontal process of the maxilla form?
Definition
medial infraorbital rim
Term
what is the process of maxilla that surrounds teeth?
Definition
alveolar process of maxilla
Term
is the origin of a muscle attached to the most or least moveable structure?
Definition
the origin goes with least moveable structure
Term

the insertion of a muscle is generally attached to the least moveable struture 

true / false

Definition

false

insertion would go with most moveable

Term
what are the suprahyoid muscles?
Definition

digastric

mylohyoid

stylohyoid

geniohyoid

Term
what are infrahyoid muscles?
Definition

sternothyroid

sternohyoid

omohyoid

thyrohyoid

Term
what is the location of digastric muscle?
Definition

it is anterior and posterior

-anterior belly originates on a tendon on body of hyoid bone and inserts to symphsis on internal surface of mandible.

-posterior belly originates on mastoid notch and inserts into intermediate tendon on hyoid bone.

Term
what is the suprahyoid muscle that makes up the floor of mouth?
Definition

mylohyoid

-originates at mylohyoid line of mandible

-inserts medially into the opposite mylohyoid muscle and into the hyoid bone.

Term
what suprahyoid muscle originates on styloid process and inserts into hyoid bone?
Definition
stylohyoid muscle
Term
what is the infrahyoid muscle located inferior to hyoid bone  orginates on sternum and inserts into thyroid gland and cartilage?
Definition
sternothyroid muscle
Term
what are the 3 intraoral landmarks  that are origins of the buccinator muscle?
Definition

pterygomandibular raphe

alveolar process of maxilla

alveolar process of mandible

Term
what is the extrinsic muscle that retracts tongue?
Definition
styloglossis (specifically it moves tongue superiorly and posteriorly
Term
what does the palatoglossus muscle do?
Definition
it elevates tongue agains soft palate during swallowing
Term
are inferior longitudinal muscles intrinsic or extrinsic tongue muscles?
Definition
intrinsic
Term
what does the genioglossus muscle do?
Definition
acts to protrude tongue forward
Term
do all 3 pharyngeal constrictors work to raise the pharynx and larynx when swallowing?
Definition

yes and the pharyngeal constrictors are:

superior

middle 

inferior

Term
what are the extrinsic muscles of the tongue?
Definition

genioglossus

styloglossus

hyoglossus

Term

which of the following inserts into coronoid process:

-lateral pterygoid muscle

-masseter muscle

-medial pterygoid muscle

-temporalis muscle

Definition

the temporalis; it helps to elevate mandible

(originates at temporal fossa and inserts into coronoid process )

Term
which muscle is associated with clenching of teeth due to repetitive muscle contraction?
Definition
masseter muscle
Term
hypertrophy
Definition
cells are enlarged
Term
hyperplasia
Definition
more cells
Term
what muscle of the mouth is a strong muscle of mastication involved in elevating the mandible and closing or clenching the mouth
Definition
masseter
Term
what muscle of the mouth is used for elevating and retracting the mandible and closing the mouth?
Definition
temporalis muscle
Term
what is the facial muscle used to lift corners of mouth while smiling
Definition
zygomatic muscle
Term
what muscle divides the neck into anterior and posterior cervical triangles?
Definition
sternocleidomastoid
Term
what muscle serves to divide the anterior and posterior triangles into smaller triangles and is located more inferior?
Definition
omohyoid muscle
Term
what is the location of the platysma muscle?
Definition
anterior withing cervical triangle
Term
what is the flat, triangular shaped muscle that is located on the lateral and posterior surfaces of neck ?
Definition
trapezius
Term
what is the muscle that when unilaterally contracted deviates the mandible to one side?
Definition
lateral pterygoid
Term
what muscle when contracted causes a surprised facial expression?
Definition
epicranious/frontalis it raises eyebrows
Term
what muscle pulls skin of eyebrow medially and inferiorly when frowning?
Definition
corrugator supercilii
Term
what muscle encircles the eye and closes it?
Definition
orbicularis oculi
Term
what muscle lifts the corner of lip and contributes to a smile?
Definition
zygomaticus major
Term
where do both ends of masseter originate?
Definition
zygomatic arch
Term
what is another name for the articulate fossa of the temporomandibular joint?
Definition
mandibular fossa
Term
where is the pterygoid fossa located?
Definition
between medial and lateral pterygoid plates of the sphenoid bone.
Term
where is temporal fossa?
Definition
lateral surface of skull that contains the body of temporalis muscle.
Term
what is the depression between  condyle and coronoid process?
Definition
mandibular notch
Term
what are the ligaments associated with TMJ?
Definition

temporomandibular joint ligament

sphenomandibular ligament

stylomandibular ligament

Term
what is the ligament associated with than tmj and is a landmark to administer inferior local anesthetic?
Definition
the sphenomandibular ligament is a landmark for administration the injection is at depth of ptyerygomandibular space
Term
TMJ allows movement of speech and mastication, what types of movement does it do?
Definition
gliding and rotating
Term
a movement of jaw backward is called what?
Definition
retraction
Term
what is the movement of lower jaw forward called?
Definition
protrusion
Term
lowering the jaw is called?
Definition
depression
Term
raising the jaw is called
Definition
elevation
Term
opening the jaw during speech and masticaton involves both
Definition

-depression

-protrusion

Term
closing the jaw involves
Definition
elevation and retraction
Term
what TMJ movement occurs lateral deviation of the mandible shifting of lower jaw to one side?
Definition
gliding on one side, rotational on other side
Term
what is the term used for dislocation of both temporomandibular joints?
Definition
subluxation
Term
what is diffuse inflammation of soft tissue spaces?
Definition
cellulitis
Term
what is an abnormal sensation from an area like burning or prickling?
Definition
paresthesia
Term
what is an intravascular clot?
Definition
thrombus
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