Flashcards in Oral Cavity Deck (146):
Attachment for buccinators and superior constrictor?
a. Sphenomandibular ligament
b. Pterygomandibular raphe
c. Stylomandibular ligament
d. Pharyngeal raphe
What artery supplies the buccinator?
A. pterygopalatine part of the maxillary artery
B. mandibular part of the maxillary artery
C. pterygoid part of the maxillary artery
The buccinator is active in smiling. T/F
Which muscles keeps the cheek taut to prevent it from folding and being injured during chewing?
Muscle which resists teeth to tilt outwards
Buccinator and orbicularis oris
Muscle which compresses the cheeks
This muscle elevates the mandible and protracts it to a limited extent
C. Medial Pterygoid
D. Lateral Pterygoid
Sensory nerve supply of posterior ⅓ of the tongue
Sensory nerve supply of the anterior hard palate
Motor nerve supply of tensor veli palatini
Taste sensation of anterior ⅓ of the tongue is supplied by ________
Damage causes paralysis of intrinsic muscles of the tongue
D. none of the above
Which muscle pulls root of tongue upwards and backwards
Superior relation to palatine tonsil:
A. Palatoglossal Arch
B. Palatopharyngeal Arch
C. Soft Palate
D. Cavity of Oropharynx
Newborns can eat and breathe at the same time because of:
A. relatively smaller tongue and jaw
B. larynx and hyoid approximates mentum
C. epiglottis rests above the soft palate during feeding
D. all of the above
Yellowish bonelike material covering the roots of teeth
A. Periodontal membrane
Stones are most likely to form in submandibular gland because:
A. Saliva has to move against gravity
B.. Short course of duct
C. Saliva is more acidic and serous
D. Lower concentration of Calcium and Phosphate
Taste buds are most concentrated on
Which is TRUE regarding taste and our taste buds?
A. The tongue map continues to be helpful in informing us regarding the different sites of taste regions in the tongue.
B. Smell plays no vital role in the taste sensation.
C. Taste substances do not have to dissolve in saliva to be detected.
D. Umami (glutamate) has recently been added to sweetness, saltiness, bitterness and sourness as the fifth quality of taste.
A mastoidectomy patient complains of loss of taste on his anterior ⅔ tongue. Which could have probably been injured?
A. Lingual nerve
B. Glossopharyngeal nerve
C. Chorda tympani
D. Tympanic nerve
All of the following occur during swallowing, except:
A. Depression of larynx
B. Elevation of soft palate
The submandibular duct
A. arises from deep part of the gland
B. opens at the palatine foramen
C. lies embedded within the gland
D. called the duct of Rivinus
Lesions found at the tip of the tongue. Where will you palpate?
C. Inferior deep cervical
D. Superior deep cervical
Elevates the cartilaginous portion of the auditory tube when swallowing and yawning
A. tensor veli palatini muscle
B. palatoglossal muscle
C. palatopharyngeus muscle
When sleeping, every how long do we swallow?
A. 1 minute
B. 3 minutes
C. 5 minutes
D. 7 minutes
The lateral border of the oral cavity is the
B. Tonsillar pillar formed by palatoglossus muscle
C. Palatopharyngeus muscle
D. Orbicularis Oris
Sublingual gland (duct) opens at
A. Sublingual fold
B. To lingual frenulum
C. Opposite 2nd molar
D. Submental beyond mylohoid
Basic Secretory Unit of the Salivary Glands
A. Stritiated Duct
B. Intercalated Duct
C. Ductal cell
Type of secretion of submandibular gland
A. serous only
B. mucous only
C. both but primarily serous
D. both but primarily mucous
How many liters of saliva do we produce every day?
A. 0.5 - 1 L
B. 1 - 1.5 liters
C. 1.5 - 2 L (ito yung answer pag kay Dr. Matubis)
D. 2 - 3 L
Dental formula per quadrant (incisors, canines, premolars and molars)
Tough, shiny, white outer surface of the tooth
What is the most critical state in swallowing?
A. tongue motion
B. soft palate elevation
C. mechanical breakdown of food
Which muscle is used to move the mentum to the right?
A. right medial pterygoid
B. left medial pterygoid
C. right lateral pterygoid
D. left lateral pterygoid
Which muscle curls the upper lip upwards?
A. Zygomaticus major
B. Orbicularis oris
C. Levator labii superioris
D. levator labii superioris allaque nasii
At the apex of the terminal sulcus of the tongue, a small depression is a point of origin of which organ?
A. Hyoid bone
B. Thyroid cartilage
C. Thyroid gland
D. Cricoid cartilage
What is not a part of oral cavity?
Nerve supply to angle of mandible and skin of parotid
C. great auricular
D. lesser auricular
The slit-like space between the teeth and gingivae and the lips and cheeks
Opening through which the oral vestibule communicates with the exterior
Roof of the oral cavity
The oral cavity communicates with what cavity posteriorly?
The free-edged folds of mucous membrane in the midline, extending from the vestibular gingiva to the mucosa of the upper and lower lips
Arteries of the lips
Superior and inferior labial arteries
Nerves of the lips
Upper: superior labial branches of the infra-orbital nerves (V2)
Lower: inferior labial branches of the mental nerves (V3)
Lymphatic drainage of the lips
Upper lip and lateral parts of the lower lip: submandibular lymph nodes
Medial part of lower lip: submental lymph nodes
Artery of the cheeks
Buccal branches of maxillary artery
Nerves of the cheeks
Buccal branches of V3
Principal muscles of the cheeks
How many deciduous teeth do children have?
How many secondary teeth do adults have?
Main composition of tooth
Skeletal features that display the greatest change during a lifetime
Tooth sockets of the maxilla and mandible
Arteries of the teeth
Superior and inferior alveolar arteries (from maxillary artery)
The superior and inferior alveolar arteries are from which artery?
Venous drainage of the teeth
Superior and inferior alveolar veins
First tooth that erupts
Second tooth that erupts
At what age do deciduous central incisors erupt?
At what age do deciduous lateral incisors erupt?
Nerve supply of the teeth
Dental plexus from the superior (V2) and inferior alveolar nerve (V3)
The incisive fossa is posterior to which tooth?
The greater palatine foramen is medial to which tooth?
What emerges from the greater palatine foramen?
Greater palatine vessels and nerve
The lesser palatine foramen is anterior the greater palatine foramen. T/F
It is posterior.
What is transmitted by the lesser palatine foramen?
Lesser palatine vessels and nerves
The soft palate has no bony skeleton but strengthened by the palatine aponeurosis. T/F
The uvula hangs from the free margin of the soft palate. T/F
The soft palate is joined to the tongue and pharynx by the palatopharyngeal and palatoglossal arches, respectively. T/F
Soft palate to tongue via palatoglossal. Soft palate to pharynx palatopharyngeal.
The space between the cavity of the mouth and the pharynx
Pilars of the fauces
Palatoglossal and palatopharyngeal arches
The short constricted space that establishes the connection between the oral cavity proper and the oropharynx
Isthmus of the fauces
Anterior boundary of the isthmus of the fauces
Posterior boundary of the isthmus of the fauces
Masses of lymphoid tissue on each side of the oropharynx
Because the mucosa of the hard palate is tightly bound to the underlying bone, the submucuous injections here are extremely painful. T/F
When the soft palate is elevated, the isthmus of the pharynx opens or closes?
The isthmus of the fauces closes when the soft palate is drawn superiorly or inferiorly?
Tenses soft palate and opens mouth of pharyngotympanic tube during swallowing and yawning
Tensor veli palatini
Elevates soft palate during swallowing and yawning
Levator veli palatini
Elevates posterior part of tongue and draws soft palate unto tongue
Tenses soft palate and pulls walls of pharynx superiorly, anteriorly and medially during swallowing
Shortens uvula and pulls it superiorly
Innervation of tensor veli palatini
Medial pterygoid nerve (V3) via otic ganglion
Innervation of most palatine muscles
Pharyngeal branch of CN X via pharyngeal plexus
Which palatine muscle is not innervated by the vagus?
Tensor veli palatini
The angle of the terminal sulcus points posteriorly to which non-functioning remnant of the proximal part of the embryonic thyroglossal duct?
What divides the dorsum of the tongue into a presulcal anterior part and a post-sulcal posterior part?
What divides the anterior tongue into right and left parts?
Large, flat topped papillae which lie directly anterior to the terminal sulcus in a V-shaped row
Vallate papillae have taste buds. T/F
Small lateral folds of the lingual mucosa
Long and numerous papillae containing afferent nerve endings that are sensitive to touch
Mushroom shaped pink or red spots most numerous on the apex and margins of the tongue
Which papillae do not have taste buds?
Lymphoid nodules on the posterior half of the tongue
The midline fold that connects the inferior surface of the tongue to the floor of the mouth
The frenulum allows the anterior part of the tongue to move freely. T/F
Which gland opens into the sublingual caruncles on each side of the base of the lingual frenulum?
Submandibular salivary gland
Group of muscles that, in general, alters the position of the tongue
Group of muscles that, in general, alters the shape of the tongue
Extrinsic muscles of the tongue
Genioglossus, hyoglossus, styloglossus, and palatoglossus
The extrinsic muscles of the tongue can also alter the shape of the tongue. T/F
Intrinsic muscles of the tongue
Superior and inferior longitudinal, transverse and vertical muscles
Intrinsic muscles of the tongue are not attached to bone. T/F
Which muscles act together to make the tongue short and thick, and to retract the protruded tongue?
Superior and inferior longitudinal muscles
Which muscles act together to make the tongue long and narrow?
Transverse and vertical muscles
Motor innervation of almost all muscles of the tongue
Hypoglossal nerve (CN XII)
Which muscle of the tongue does not receive motor innervation from Cn XII?
Motor innervation of palatoglossus
Nerve supply of tongue for general sensation (touch and temperature)
anterior 2/3: lingual nerve (V3)
posterior 1/3: glossopharyngeal nerve (CN IX)
Nerve supply of tongue for special sensation (taste)
anterior 2/3, except vallate papillae: chorda tympani (CN VII)
posterior 1/3 and vallate papillae: glossopharyngeal (CN IX)
Nerve supply of anterior 2/3 of tongue
touch and temperature: lingual nerve (v3)
taste: chorda tympani (CN VII)
Nerve supply of posterior 1/3 of tongue
Glossopharyngeal nerve (CN IX)
Nerve supply for special sensation to a small area of the tongue just anterior to the epiglottis
Internal laryngeal nerve (CN X)
From which vessel does the lingual artery arise?
External carotid artery
Arterial supply of root of tongue
Dorsal lingual arteries
Arterial supply of the body of the tongue
Deep lingual arteries
The deep lingual arteries communicate at the root of the tongue. T/F
They communicate at the apex.
The deep lingual arteries are prevented from communicating by the lingual septum. T/F
It is the dorsal lingual arteries that are prevents form communicating.
Veins of the tongue
Dorsal lingual and deep lingual veins
The deep lingual veins join which vein?
The deep lingual veins run posteriorly with which structure to join the sublingual vein?
The deep lingual, dorsal lingual and sublingual veins drain directly to the IJV, or indirectly, to first join which vein?
Lymphatic drainage of the root of the tongue
Superior deep cervical lymph nodes
Lymphatic drainage of medial portion of the body of the tongue
Inferior deep cervical lymph nodes
Lymphatic drainage of the right and left sides of the body of the tongue
Submandibular lymph nodes
Lymphatic drainage of the apex and frenulum of the tongue
Submental lymph nodes
Approximate length of the duct of the submandibular gland
Arterial supply of submandibular gland
Venous supply of the submandibular gland
The submandibular gland drains into which lymph node?
Jugulo-omohyoid node of the deep cervical lymph nodes
Parasympathetic innervation of the submandibular gland
Chorda tympani nerve
Sympathetic innervation of the submandibular gland
Superior cervical ganglion
Arterial supply of sublingual glands
Sublingual (from lingual artery) and submental (from facial artery) arteries
Presynaptic parasympathetic innervation of sublingual glans
Chorda tympani (from Cn VII) and lingual nerves
The common discoloration of the lips results from what phenomenon?
Decreased blood flow in capillary beds supplied by the superior and inferior labial arteries, and increased extraction of oxygen.
CN responsible for gag reflex
CN IX and X
Paralysis of which muscle results in the tendency of the tongue to fall posteriorly, causing obstruction of the airway?
During protrusion, the paralyzed tongue deviates to which side: the paralyzed or the contralateral side?
Substances absorbed on the underside of the tongue are absorbed through which vessels?
Deep lingual veins
Lingual carcinoma in the posterior part of the tongue metastasizes to which lymph nodes?
Superior deep cervical lymph nodes