Exam 3 Flashcards
what bone structure does the tensor veli platatini wrap around?
pterygoid hamulus
functions of the tongue
mastication, taste, degultition/swallowing, and speech
what are the two parts of the dorsal surface of tongue
pharyngeal part (posterior 1/3) and oral part (anterior 2/3)
what separates the two parts of tongue
terminal sulcus (with foramen cecum)
contents of pharyngeal/posterior 1/3rd of tongue
- lingual tonsils
- median glossoepiglottic folds
- lateral glossoepiglottiic folds
- vallecula
what is the important area to screen for throat cancers?
vallecula
because liquids can sit there (drinking and smoking toxins can sit in this pocket)
what is another name for oral component of tongue
anterior 2/3 or presulcal
contents of oral component of tongue
median sulcus (groove) and papillae
contents of the ventral surface of tongue
- lingual frenulum (fold or ridge of tissue)
- sublingual papilla/caruncle
- deep lingual veins
- plica fimbriata/folds
what are fimbriated folds
excess tissue that hands down from tongue
where do sublingual ducts open
sublingual fold
where does submandibular duct open
sublingual caruncle/papilla
what are the extrinsic tongue muscles
- genioglossus
- hyoglossus
- styloglossus
- palatoglossus
what are the innervations of the extrinsic muscles of the tongue?
CN XII (hypoglossal): genioglossus, hyoglossus, styloglossus
CN X (pharyngeal branch of vagus): palatoglossus EXCEPTION TO THE GLOSSUS MUSCLES!!!!
what muscles anchors the tongue to the mandible
genioglossus
what is the lateral aspect of the tongue between intrinsic tongue ms. and styloglossus ms?
hyoglossus
what is the tongue and soft palate muscle?
palatoglossus
genioglossus movement
- bilateral - protrudues and depresses central portion
- unilateral - deviates to contralateral side
hyoglossus movement
depresses
styloglossus movement
retrusion and elevation
palatoglossus movement
elevation of tongue root and narrows oropharyngeal isthmus for deglutition (swallowing)
what artery runs between genioglossus and hyoglossus ms.
lingual a.
what run on the lateral surface of the hyoglossus ms (between hyoglossus and mylohyoid)
- submandibular duct
- lingual n. from V3
- hypoglossal n. (CN XII)
what are the intrinsic muscles of the tongue
- superior longitudinal
- inferior longitudinal
- transverse
- vertical
what innervates the intrinsic muscles of the tongue
ALL HYPOGLOSSAL CN XII
what n. wraps around occipital branch of external carotid
CN XII hypoglossal
where does hypoglossal n. run between
hyoglossus and mylohyoid ms
the hypoglossal n. is located inferior to ___ on the lateral aspect of the hyoglossus ms.
inferior to lingual n. of V3
what innervates the palatoglossus ms
CN X (vagus - pharyngeal branch)
**ms is part of both tongue and soft palate
what symptoms woud you experience if you had a peripheral lesion of the hypoglossal n. on the right side?
Tongue deviates toward lesion, so tongue deviates towards right side.
This is because the left side is still working, and when it protrudes, it pushes towards the non-functioning side
GSA innervations of tongue
GSA = pain, temp, discrimunative touch
- X (internal laryngeal off superior laryngeal) = palatoglossus
- IX (glossopharyngeal) = posterior 1/3
- V (trigeminal via V3) = anterior 2/3
SVA innervations of tongue
SVA = taste
1. X (internal laryngeal off superior laryngeal) = palatoglossus
2. IX (glossopharygeal) = posterior 1/3
3. VII (facial CHORDA TYMPANI) joins w/ lingual n. of V3 = anterior 2/3
what are the motor n. of the tongue
XII and X (pharyngeal branch of vagus bc palatoglossus ms)
your 85 y/o pt reports of severe electric shock shooting pain on left side back of her tongue and side of her throat. It is provked by swallowing, talking, or coughing. which n. is mostly invovled in condition
glossopharyngeal n. IX
what arteries supply tongue
- ascending pharyngeal
- facial a.
- lingual a.
what are the branches off facial a.
submental and tonsillar
what are the branches off lingual a.
- dorsal lingual
- deep lingual
- sublingual
lingual a. branches are located [deep or superficial] to hyoglossus ms
DEEP (aka medial)
what anatomical structure must be taken into account when doing dental implants?
artery of the lingual foramen
where do the lingual and facial veins empty into?
internal jugular vein
where does root of tongue (posterior 1/3rd) drain?
BILATERAL
jugulodigastric (superior deep cervical) -> jugulo-omohyoid (inferior deep cervical) -> thoracic duct or right lymphatic duct
where does tip of tongue (apex) drain?
BILATERAL
to submental nodes -> jugulo-omohyoid (inferior deep cervical) -> thoracic duct or right lymphatic duct
where does medial part of anterior 2/3 of tongue drain?
BILATERAL
jugulo-omohyoid (inferior deep cervical) -> thoracic duct or right lymphatic duct
where does lateral part of anterior 2/3 of tongue drain?
IPSILATERAL
submandibular lymph nodes -> jugulo-omohyoid (inferior deep cervical) -> thoracic duct or right lymphatic duct
what parts of the tongue drain bilaterally? ipsilaterally?
bilateral: root, apex, and medial anterior 2/3
ipsilateral: lateral anteiror 2/3
what is a common passageway for digestive and respiratory systems
pharynx
extent of pharynx
cranial base to inferior border of cricoid cartilage (C6)
posterior wall of the pharynx lies against what?
prevertebral fascia
the pharyngeal constrictors lie between what 2 fascias? which is the innermost and outermost?
- pharyngobasilar (innermost)
- buccopharyngeal (outermost)
what is the fold located inside of the pharynx
salpingopharyngeal fold
what is a slit-like lateral projection of the pharynx that is posterolateral to salpingopharyngeal fold?
pharyngeal recess
what are the parts of the pharynx
nasopharynx, oropharynx, and laryngopharynx
what is composed of the pharynx?
- 3 constrictor muscles
- 3 longitudinal muscles
- cartilaginous part of pharyngotympanic tube
- soft palate
what are the layers of the pharyngeal wall from innermost to outermost?
- mucous membrane
- submucosa
- pharyngobasilar fascia
- 3 inner longitudinal
- 3 circular layers
- buccopharyngeal fascia
what is a fibrous fascia that anchors the pharynx to the skull
pharyngobasilar fascia
what fascia continues over the buccinator and pharyngeal muscles and is the location of the pharyngeal plexuses of nn. and vv.?
buccopharyngeal fascia
oropharynx vertebral levels
C2-C3
superior boundary of oropharx
nasopharynx
inferior boundary of oropharynx
superior border of epiglottis
anterior border of oropharynx
palatoglossal fold
posterior border of oropharynx
mucosa covering superior and middle contrictors (pharyngobasilar)
lateral border of oropharynx
mucosa covering superior and middle constrictors (pharyngobasilar)
what tonsils are located in the oropharynx
lingual tonsils and palatine tonsils
what are spaces/depressions between the epigltotis and root of tongue
epiglottic valleculae
laryngopharynx vertebral level
C4-C6
superior boundary of laryngopharynx
oropharynx
inferior border of laryngopharynx
inferior border of cricoid cartilage C6
anterior border of laryngopharynx
larynx
posterior border of laryngopharynx
mucosa over middle and inferior constrictors (pharyngobasilar)
what depression is located in the laryngopharynx on either side of the laryngeal inlet
piriform recess/fossa
is the piriform recess separated from the ary-epiglottic fold?
yes
what is bounded laterally by thyroid cartilage and thyrohyoid membrane
piriform reccess
what are the contents of the piriform recess
- internal laryngeal n.
- recurrent laryngeal n.
- superior laryngeal a.
clinical significance of piriform recess
foreign body can lodge into recess and can make nerves prone to injury
what is a circumpharyngeal ring composed of MALT
Waldeyer’s Tonsilar Ring
components of Waldeyer’s Tonsilar ring
- pharyngeal tonsils
- tubal tonsils
- palatine tonsils
- lingual tonsils
what tonsils are in the roof and posterior wall of nasopharynx
pharyngeal tonsils/adenoids
what tonsils are near the orifice of the pharyngotympanic opening in nasopharynx?
tubal tonsils
what tonsils lie in tonsilar bed between palatoglossal fold and palatopharyngeal folds, has a lateral wall formed by superior constrictor, and is in oropharynx?
palatine tonsils
what tonsils are located on the posterior 1/3rd of tongue
lingual tonsils
what forms an external circular layer of pharyngeal ms
three pharyngeal constrictors
actions of pharyngeal muscles
contract involuntarily and allows for sequential contraction from superior to inferior
innervations of pharyngeal muscles
pharyngeal plexus - CN IX and CN X
does the superior pharyngeal constrictor extend directly to skull?
no. done by pharyngobasilar fascia
where do all three constrictors insert to?
median pharyngeal raphe
additionally: superior inserts into pharyngeal tubercle
what are the parts of the inferior pharyngeal constrictor
- thyropharyngeus (more oblique)
- cricopharyngeus (more circular/horizontal)
what innervates the pharyngeal constrictors
- superior - pharyngeal plexus
- middle - pharyngeal plexus
3a. thyropharyngeus - pharyngeal plexus
3b. Cricopharyngeal - recurrent (X) and external laryngeal (off superior laryngeal)
motor components of pharyngeal plexus
CN X (vagus) - constrictors, palatopharyngeus, and salpingopharyngeus muscles
EXCEPTIONS:
1. CN IX (glossopharyngeal) - stylopharyngeus ms.
2. CN V3 - tensor veli palatini ms.
sensory components of pharyngeal plexus
CN IX (glossopharyngeal) - mainly for oro and laryngopharynx
postganglionic sympathetics of pharyngeal plexus
superior cervical ganlion and vasomotor
origin of ascending pharyngeal a
external carotid
path of ascending pharyngeal a.
ascends between lateral aspect of pharynx and ICA
branches of ascending pharyngeal a.
pharyngeal and palatine arteries
what artery supplies stylopharyngeus, middle and inferior constrictors (pharyngeal branches), superior contrictor, palatine tonsils, soft palate, and auditory tube?
ascending pharyngeal
origin of ascending palatine a.
facial a.
path of ascending palatine a.
ascends on lateral side of pharynx between styloglossus and stylopharyngeus, passing thru gap between base of skull and superior constrictor
what supplies the superior constrictor and soft palate
ascending palatine a.
origin of tonsillar a.
facial a.
path of tonsillar a.
ascends lateral pharynx, passes INTO superior constrictor to reach palatine tonsil and root of tongue
what supplies the superior constrictor, palatine tonsils, an root of tongue
tonsillar a
where does the superior constrictor receive blood supply
ascending pharyngeal a., ascsending palatine a., and tonsilar a.
origin of superior thyroid a.
external carotid a.
path of superior thyroid a.
descends along inferior constrictor to thyroid gland
what does the superior thyroid a. supply
inferior constrictor and thyroid gland
what is the origin of the inferior thyroid a.
thyrocervical trunk
what does the inferior thyroid a. supply
pharynx via muscular branches
origin of pharyngeal a.
3rd part maxillary a.
path of pharyngeal a.
passes posteriorly with pharyngeal n. to pharyngeal canal
what does the pharyngeal a. supply
superior portion of nasopharynx and auditory tube
origin of the a. of pterygoid canal
3rd part of maxillary a.
path of a. of pterygoid canal
passes posteriorly in pterygoid canal with VIDIAN N.
what does the a. of pterygoid canal supply?
auditory tube
origin of lesser palatine a.
descending palatine a. in palatine canal
path of lesser palatine a.
exits canal via lesser palatine foramen
what does the lesser palatine a. supply
soft palate and palatine tonsils
what is located posteriorly in buccopharyngeal fascia
pharyngeal venous plexus
what gives rise to pharyngeal veins
pharyngeal venous plexus
where does the pharyngeal venous plexus terminate
drain into the internal jugular vv. and into pterygoid plexus of vv.
can also drain into facial, lingual or superior thyroid veins
what are the apertures in the pharngeal wall
- pharyngobasilar
- between superior and middle constrictors
- between middle and inferior constrictors
- inferior to inferior constrictor
what does the pharyngobasilar aperture transmit
- levator veli palatini
- pharyngotympanic (auditory tube)
- ascending palatine a.
- ascending pharyngeal a.
what does the aperture between superior and middle constrictor transmit
- stylopharygeus ms.
- CN IX
- tonsilar branch of ascending palatine a.
- stylohyoid ligament
what does the aperture between middle and inferior constrictors transmit
- internal laryngeal n.
- superior laryngeal a.
- superior laryngeal v.
what does the aperture inferior to inferior constrictor transmit
- recurrent laryngeal n.
- inferior laryngeal a.
- inferior laryngeal v.
what is on the internal surface of the pharyngeal constrictors and closes the gap between skull and superior constrictor
pharyngobasilar fascia
what is on the external surface of the pharyngeal constrictors and is between the pharyngeal constrictors and prevertebral fascia?
buccopharyngeal fascia
what is the opening to the nasal cavity called
choanae
what is an elevation formed by cartilaginous portion of auditory tube
torus tubarius
what provides attachment point for salpingopharyngeal fold (salpingopharyngeus muscles covered with mucosa)
torus tubarius
what is a slit-like lateral projection to the pharynx
pharyngeal recess
what is posterolateral to the salpingopharyngeal fold
pharyngeal recess
what contains the pharyngeal tonsils
pharyngeal recess
what lies in the floor of the auditory tube
levator veli palatini
what connects the middle ear and nasopharynx and helps equalize air pressure on both sides of the tympanic membrane
pharyngotympanic (auditory) tube
what allows for spread of infection between middle ear and nasopharynx
pahryngotympanic (auditory) tube
is the pharyngotympanic (auditory) tube typically open or closed?
closed
due to:
- elastic recoil of cartilage
- tissue turgidity
- tension of salpingopharyngeus muscle
when does pharyngotympanic (auditory) tube open?
when tensor veli palatini muscle pulls wall of tube laterally during swallowing or yawning
what are the longitudinal muscles of the pharynx
- salpingopharyngeus
- palatopharyngeus
- stylopharyngeus
what elevates the upper and lateral portions of the pharynx and also elevates the larynx?
salpingopharyngeus
what innervates salpingopharyngeus
CN X via pharyngeal plexus
what elevates pharynx and larynx and helps close nasopharynx
palatopharyngeus
what innervates palatopharyngeus
CN X via pharyngeal plexus
what elevates pharynx and larynx, and expands sides of pharynx
stylopharyngeus
what innervates stylopharyngeus
CN IX glossopharyngeal
(EXCEPTION TO PHARYNX MUSCLES NOT CN X VAGUS)
what elevates during swallowing to prevent food from entering nasal cavity
soft palate
what innervates the muscles of the soft palate?
CN X via pharyngeal plexus
EXCEPTION: tensor veli palatini is V3!!!!
what are the muscles of the soft palate
- tensor veli palatini
- levator veli palatini
- palatoglossus
- palatopharyngeus
- musculus uvulae
what pulls soft palate laterally and broadens it
tensor veli palatini
what innervates tensor veli palatini
V3
THIS IS THE EXCEPTION OF SOFT PALATE MS!!
what elevates the soft palate and pulls it posterosuperiorly to help close the nasopharynx?
levator veli palatini
what innervates levator veli palatini
CN X via pharyngeal plexus
what elevates root of tongue and narrows oropharyngeal isthmus for deglutition
palatoglossus ms
what innervates palatoglossus
CN X via pharyngeal plexus
what helps close nasopharynx and elevates pharynx and larynx
palatopharyngeus ms
what innervates palatopharyngeus ms
CN X via pharyngeal plexus
what retracts uvula and pulls it superiorly
musculus uvulae
what innervates musculus uvulae
CN X via pharyngeal plexus
pharyngeal plexus motor innervations
CN X (all constrictors, salpingopharyngeus, palatopharyngeus, and soft palate muscles)
EXCEPTIONS:
CN IX is stylopharyngeus
V3 - tensor veli palatini
pharyngeal plexus sensory innervations
CN IX via pharyngeal plexus - pharynx
CN V2 - general sensaiton to soft palate
CN VII - taste
what arteries supply soft palate
- lesser palatine
- palatine branch
- ascending palatine
- dorsal lingual
origin of lesser palatine a.
descending palatine
path of lesser palatine a.
enters palate thru lesser palatine foramen and anastomoses with ascending palatine a
origin of palatine branch
ascending pharyngeal a
path of palatine branch
crosses over superior pharyngeal constrictor then to soft palate
probably really remember this bc lecture slide was wrong
origin of ascending palatine a
facial a
path of ascending palatine a
ascends along lateral pharynx between styloglossus and stylopharyngeus, passing thru gap between skull and superior constrictor
dorsal lingual a. origin
lingual a.
path of dorsal lingual a.
2-3 small vessels that arise medial to hyoglossus muscles, ascends along posterior part of dorsum of tongue
where does venous drainage occur in soft palate
paryngeal plexus and pterygoid plexus of veins
steps of deglutition
- food pushed posteriorly by tongue (voluntary)
- tensing of soft palate by tensor veli palatini
- elevation of soft palate by levator veli palatini
- larynx and pharynx are elevated by longitudinal muscles
- constrictor muscles contract sequentially to move bolus down to esophagus
- epiglottis tips over laryngeal inlet
- bolus is divided into 2 streams
- flow thru piriform recesses towards esophagus
- soft palate pulled inferiorly towards root of tongue
- oropharyngeal cavity is clsoed due to contaction of superior constrictor
- relaxation of cricopharyngeus allows bolus to move into esophagus
- larynx closed by ary-epiglottic and vestibular folds
- contraction reaches valleculae and presses remaining bolus towards and into esophagus
- contraction passes thru pharynx and epiglottis moves superiorly as hyoid and larynx descend; communication with nasopharynx reestablished
- all structures return to resting position
what is the only voluntary phase of deglutition
when food is first pushed posteriorly by tongue
what tenses the soft palate
tensor veli palatini
what elevates the soft palate
levator veli palatini
what happens when the larynx and pharynx are elevated by longitudinal muscles
- pharynx is widened and shortened
- superior constrictor is drawn up and fold is formed “Fold of Passavant”
how many streams is the bolus divided into and where does it flow?
2 streams, each flowing into piriform recesses
what degree:
cleft uvula
1st degree
what degree:
ununited palatal processes
2nd degree
what degree:
- ununited palatal process and a cleft on one side of the primary palate
- usually associated with unilateral cleft lip
3rd degree
what degree:
- rare
- ununited palatal processes and a cleft on both sides of the primary palate
- usualy associated with bilateral cleft lip
4th degree
clinical issues of cleft palate
- baby unable to suck effectively
- milk may be regurgitated thru nose or aspirated into lungs
- respiratory infection
what arteries provide blood supply to pharynx
- ascending pharyngeal
- ascending palatine
- tonsilar
- superior thyroid
- inferior thyroid
- pharyngeal
- a. off pterygoid canal
- lesser palatine a.
what is the connection between the pharynx and trachea
larynx
vertebral location of larynx
midline opposite of C3-C6
hyoid bone vertebral level
C3
thyroid cartilage vertebral level
C4/5
what is designed for sound production/phonation
larynx
what are the 9 cartilages of the larynx
3 unpaired (thyroid, cricoid, and epiglottis)
3 paired (cuneiform, corniculate, and arytenoid)
what are the 3 regions of the larynx
- vestibule/supraglottic (false vocal cord)
- ventricle
- infraglottic
what is anterior to larynx
thyroid carilage
what is posterior to larynx
anterior wall of laryngopharynx
what is superior to larynx
base of tongue and vallecula (collecting space)
what is inferior to larynx
trachea
what is the only cartilage that goes all the way around
cricoid carilage
what cartilage moves on top of cricoid cartilage
arytenoid cartilage
what is the unpaired, elastic cartilage that is pear shaped
epiglottis
what helps prevent foreign bodies from entering the larynx/trachea during deglutition? how?
epiglottis
thyroid cartilage/larynx elevate and move anterior - hyoid bone remains stable
what is unpaired, consists of hyaline cartilage, and is the biggest of the laryngeal cartilages?
thyroid cartilage
vertebral level of thyroid cartilage
C4-C6
thyrohyoid membrane has opening for what 2 structures?
- internal laryngeal (sensory only)
- superior laryngeal vessels
what constrictor attaches to the posterior aspect of the thyroid cartilage?
inferior constrictor
what is the unpaired, consists of hyaline cartilage, and is the only complete ring of cartilage in the respiratory system?
cricoid carilage
why are other cartilages except for the cricoid U-shaped?
to allow cartilage to adjust to object moving thru
what muscles attach to cricoid cartilage
intrinsic and extrinsic laryngeal muscles
cervical level of cricoid cartilage
C6
primary areas of physiologic narrowing of esophagus
- upper esophageal sphincter
- middle esophagus
- lower esophageal sphincter
what is part of the upper esophageal sphincter
- cricopharyngeus ms
- lower part of inferior pharyngeal constrictor
- cricoid cartilage
where is the thyroid isthmus typically located
second to fourth tracheal rings
what is paired, the smallest, most superior cartilage that helps support aryepiglottic fold?
cuneiform cartilage
what cartilage is paired, lies on apex of arytenoid, and helps support aryepiglottic fold?
corniculate cartilage
what are the two processes of the paired arytenoid cartilage?
- muscular process (posterolateral)
- vocal process (anteromedial)
the base of the arytenoid cartilage articulates with what?
cricoid cartilage
what is a rotation/pivot point between thyroid and cricoid cartilage?
cricothyroid joint (synovial)
what laryngeal joint tenses vocal ligaments
cricothyroid joint (synovial)
what laryngeal joint rotates and glides?
cricoarytenoid joint
what are the movements of the cricoarytenoid joint
- medial rotation with medial gliding CLOSES rima glottis
- lateral rotation with lateral gliding OPENS rima glottis
what connects thyroid cartilage to hyoid bone
thyrohyoid membrane
what connects epiglottis to thyroid cartilage
thyroepiglottic ligament
what connects hyoid bone to epiglottis
hyoepiglottic ligament
what connects cricoid cartilage to 1st tracheal cartilage
cricotracheal ligament
what are the extrinsic membranes and ligaments of the laryngx
- thyrohyoid membrane
- thyroepiglottic membrane
- hyoepiglottic membrane
- cricotracheal ligament
what connects the arytenoid to epiglottis
quadrangular membrane
what is the free edge of inferior border of quadrangular membrane?
vestibular ligament aka false vocal cord
what connects arytenoid (vocal process) to thyroid cartilage
vocal ligament (helps form true vocal cord)
what is the conus elasticus
aka cricothyroid membrane that consists of lateral part and medial part
what is the location of the emergency airway site in larynx
medial part of cricothyroid ligament/conus elasticus
what are the major intrinsic membranes and ligaments of the larynx
- quadrangular membrane
- vestibular ligament
- vocal ligament
- conus elasticus/cricothyroid membane
what provides sensory to the mucosa and motor innervation to MOST muscles at and below the vocal cord level?
recurrent laryngeal (sensory and motor)
EXCEPTION: external laryngeal innervates cricothyroid ms
what innervates mucosa above vocal folds (true vocal cords) in the larynx and esophagus, also responsible for cough reflex?
internal laryngeal nerve (off superior laryngeal off CN X)
what innervates motor to cricothyroid ms?
external laryneal nerve (off superior laryngeal off CN X)
what provides sensory and motor below vocal folds, including all laryngeal muscles except for cricothyroid ms?
recurrent laryngeal nerve (off CN X)
cricothyroid ms function
increases tension of vocal cords
thyroarytenoid ms function
decreases tension on vocal cords
thyroarytenoid innervation
recurrent laryngeal n
what are inferior medial fibers of the thyroaretenoid ms
vocalis ms
what inserts directly on vocal ligament and can relax very specific segments to adjust pitch and provide fine tone control?
vocalis ms
what is the only laryngeal muscle that ABducts?
posterior cricoarytenoid ms
what is the biggest muscle of the larynx?
posterior cricoarytenoid ms
posterior cricoarytenoid function
ABducts and opens rima glottis
posterior cricoarytenoid innervation
recurent laryngeal n
lateral cricoarytenoid ms function
ADDucts and closes rima glottis
lateral cricoarytenoid innervation
recurrent laryngeal
transverse arytenoid ms function
ADDucts and clses rima glottis
transverse arytenoid innervation
recurrent laryngeal n
oblique arytenoid ms function
ADD and closes rima glottis
oblique arytenoid ms innervation
recurrent laryngeal
thyroepiglottic ms function
ADDucts and helps close laryngopharyngeal opening
thyroepiglottic ms innervation
recurrent laryngeal
aryepiglottic ms function
ADDucts and helps close laryngopharyngeal opening
aryepiglottic ms innervation
recurrent laryngeal n
a lesion of which nerves would result in a “hoarse” sounding voice
recurrent laryngeal n. (unilateral)
if it were bilateral, there would be no voice
what provides vascular supply to larynx?
- superior laryngeal a. and v.
- inferior laryngeal a. and v.
what is the superior laryngeal a. a branch off?
off superior thyroid a. off external carotid
what artery, vein, and nerve pass thru thyrohyoid membrane?
superior laryngeal artery and vein
internal laryngeal n
what is the inferior laryngeal a. a branch of?
branch of inferior thyroid a. off thyrocervical trunk off subclvian
what nerve accompanies inferior laryngeal a. and v.
recurrent laryngeal n.
vertebral and cartilage level of thyroid gland
2-4 tracheal rings at ~T1
where do the veins from laryngeal muscles drain to?
internal jugular and subclavian veins
where do the areas above the false vocal folds drain?
to upper deep cervical nodes (jugulodigastric)
where do areas below the false vocal folds drain?
lower deep cervical nodes (jugulo-omohyoid)
the upper and lower lips are made up of a transitional zone and border, what are those named?
vermillion zone and vermillion border
what zone is the mucosa of the oral cavity and skin of face
vermillion zone
what makes up a sharp line between lip and face
vermillion border
what is the name of the side of the nose/wing of the nose?
ala of nose
what type of tissue is the ala of the nose
fibro-fatty tissue
what is the groove from the ala of the nose to the angle of the mouth
nasolabial groove
what is the angle of the mouth down to the angle of the mandible
labiomarginal groove
what is the horizontal groove between lower lip and chin called
labiomental groove
what is above the upper lip and below the septum of the nose
philtrum
what comprises the corner of your mouth, upper and lower lip connection
labial commissures
the oral cavity can be divided into two parts, what are they?
vestibule and oral cavity proper
what is between the lips, cheeks, and teeth?
vestibule
what is the entryway to the oral cavity called
vestibule
what is everything within the dental arch called
oral cavity proper
what is the fold of CT/mucosa in the upper lip
labial frenulum (maxillary)
what is alveolar bone covered by mucosa connection to lip called
labial frenulum
looking at the sides of the vestibule, what are the frenula/frena called
accessory labial frena
what is found draining into oral cavity opposite maxillary 2nd molar
parotid papilla
what is the mucous memraben reflection area/fornix, that contains the bony part of the mandible/maxilla that folds back onto itself to cheek?
mucobuccal fold/mucolabial folds
what is the tissue that surrounds the neck of the teeth called?
gingiva
what is the gingival mucosa covering the bone called?
mucogingival junction
what color is mucosa covering the bone typically as compared to mucosa covering the tooth
mucosa covering bone - red
mucosa covering tooth - pink
where they join is the mucogingival junction
what is the muscles that is covered by mucosa that forms the cheek
buccinator
what is the term for the floor of the oral cavity
alveolingual sulcus
is the tongue in the floor of the oral cavity
yes
what is the ms/aponeurosis covered by mucosa at the roof of the mouth called
soft palate
what makes up the anterior border of the oral cavity proper
mouth
what is the space between one’s lips referred to as
mouth
what is the posterior border to the oral cavity proper
oropharynx/pharynx/throat
what makes up the roof to the oral cavity
hard palate
what is made up of the palatine process of maxilla and horizontal plate of palatine bones
hard palate
is the hard palate covered by mucosa
yes
what makes up the floor of the oral cavity proper
muscular tongue and floor of the oral cavity
from the oral cavity to the oropharynx, what is the passage called?
fauces or oropharyngeal isthmus
how many arches does the fauces contain
2
what is the fold of the anterior pillar of the fauces called
palatoglossal fold
what is the fold of the posterior pillar of the fauces called
palatopharyngeal fold
what lies between palatoglossal fold and palatopharyngeal fold
tonsillar bed
what tonsils are found in the tonsillar region
palatine tonsils
is the pterygomandibular raphe further anterior or posterior to tonsillar bed
anterior
what underlies the palatine tonsil bed
superior constrictor muscle
what palate is bone covered over by mucosa, firmly adherent?
hard palate
what are the horizontal ridges of the soft tissue in the hard palate called
palatine rugae
what is behind the central incisors, that lies over the incisive foramen?
incisive papillae
what is down the midline that covers midline suture of the hard palate, where the two sides of palate come together
palatine raphe
what can you NOT see in the tissue, but if you palpate the area you can feel it
greater palatine foramen
what is the border between the hard and soft palate, has a curve-like shape to it, and its attachment for the aponeurosis of soft palate, in which when you speak it moves?
vibrating line - border of soft palate
what are the two digits on the soft palate, key for minor salivary glands in which gives a monkey’s eye appearance?
palatine fovea
what is a little muscle covered by mucosa which helps seal soft palate to pharynx
uvula
is the bony outgrowth in the center of hard palate called
palatine torus
can you have mandibulra tori
yes
what can a failure of fusion of the hard palate form shelves lead to
cleft palate
what is the simplest form of cleft palate
bifed uvula
what is under the tongue that holds it down
lingual frenum
what is the raised line in the midline of the floor of the oral cavity called
sublingual fold
the importance of the sublingual fold
along the fold, it has openings/ducts for SUBLINGUAL GLAND
what is the bigger bump on the sublingual fold near the midline called?
sublingual papilla
what is the importance of the sublingual papilla?
opening for SUBMANDIBULAR DUCT
what are little tags of tissue under the tongue called
fimbriated folds
what are the vessels under the tongue called
deep lingual arteries and veins
what makes up the muscular floor
suprahyoid muscles:
1. mylohyoid
2. anterior digastric
3. geniohyoid
will you find the deep portion of the submandibular gland and entire sublingual gland in the floor?
yes
wha is the name of the submandibular duct that is also found in the floor of the oral cavity
Wharton’s duct
is the lingual nerve foudn in the floor of the oral cavity
yes
since the lingual nerve is found in the floor of the oral cavity, what gnaglion is also present?
submandibular ganglion
what nerve crosses the submandibular duct twice
lingual n
what nerve lies inferiorly in which crosses the lingal arery
hypoglossal nerve
what is the branch off the lingual artery that is in the floor o the oral cavity
sublingual artery
do the lingual artery and lingual nerve travel together
no