Chapter 1 Development of the head and neck
- 1.
Your adult patient has a cleft palate that has been surgically corrected. This was caused by a failure of fusion of which 2 specific structures during fetal development?
- A.
1st and 2nd pharyngeal arches
- B.
2nd and 3rd pharyngeal arches
- C.
Lateral nasal and maxillary processes
- D.
Medial nasal process and 1st pharyngeal arch
- A.
- 2.
Failure of fusion of the medial nasal prominences during development would have the greatest potential to affect which teeth?
- A.
Central maxillary incisors
- B.
Mandibular 1st molars
- C.
Maxillary 2nd premolars
- D.
Mandibular canines
- A.
- 3.
All of the following cranial nerves provide general somatic afferent (GSA) fibers to the epithelium of the tongue except :
- A.
Glossopharyngeal
- B.
Facial
- C.
Vagus
- D.
Trigeminal
- A.
- 4.
Which morphologic stage of tooth development corresponds to the time when the enamel organ, dental papilla, and dental follicle are first recognized?
- A.
Bell
- B.
Bud
- C.
Cap
- D.
Dental placode
- A.
- 5.
In the adult, the portion of the hard palate located directly posterior to the maxillary incisors but anterior to the incisive foramen is called the:
- A.
Lateral palatal shelves
- B.
Horizontal plate of palatine bone
- C.
Palatine bone of the maxilla
- D.
Secondary palate
- E.
Premaxilla
- A.
- 6.
Infants with DiGeorge’s syndrome develop hypocalcemia and are highly susceptible to viral and bacterial infections. These symptoms are most likely caused by the failure of the differentiation of the:
- A.
4th and 6th pouches
- B.
2nd and 3rd pouches
- C.
3rd and 4th pouches
- D.
1st and 2nd pouches
- A.
- 7.
The earliest stage at which enamel will be deposited is the ___________________ stage.
- A.
Late bell
- B.
Early crown
- C.
Mid crown
- D.
Late crown
- A.
Chapter 2 Osteology
- 8.
An anesthetic injection into the area near the incisive foramen of the hard palate should have the greatest effect on which nerve?
- A.
Nasopalatine
- B.
Lesser palatine
- C.
Greater palatine
- D.
Superior alveolar
- A.
- 9.
This foramen is palpable on the body of the mandible on either side of the face. It is also a landmark for a dental injection.
- A.
Supraorbital
- B.
Mandibular
- C.
Infraorbital
- D.
Mental
- A.
- 10.
A horizontal fracture of the midface extending from the lateral margin of the piriform aperture to the pterygoid plates superior to the apices of the teeth is termed:
- A.
Le Fort I
- B.
Le Fort II
- C.
Le Fort III
- D.
Jefferson
- A.
Chapter 3 Basic neuroanatomy and cranial nerves
- 11.
You ask your patient to stick out their tongue and you notice it deviates to the right. This response may indicate an injury of which nerve?
- A.
Mandibular division of the trigeminal
- B.
Glossopharyngeal
- C.
Facial
- D.
Hypoglossal
- A.
- 12.
In the scenario in Question 11, where has the nerve lesion most likely occurred to cause deviation of the tongue to the right when attempting to protrude?
- A.
Right side
- B.
Left side
- C.
Bilateral
- D.
Right motor cortex
- A.
- 13.
Which cranial nerve is responsible for the majority of general somatic afferent (GSA) innervation of the teeth?
- A.
Facial
- B.
Trigeminal
- C.
Hypoglossal
- D.
Glossopharyngeal
- A.
Chapter 4 The neck
- 14.
Sympathetic innervation of the head and neck originates from where?
- A.
Spinal accessory nerve
- B.
Spinal cord, T1 to T4 levels
- C.
The cervical plexus (C1 to C4 ventral nerve roots)
- D.
Primarily trigeminal nerve with small contributions from several other cranial nerves
- A.
- 15.
Which artery originates directly from the external carotid in the neck?
- A.
Thyrocervical trunk
- B.
Transverse facial
- C.
Superior laryngeal
- D.
Occipital
- A.
- 16.
A superficial skin infection of the face that has the greatest potential to travel to the meninges of the brain is one that travels into which vein(s)?
- A.
Internal jugular
- B.
Pterygoid plexus
- C.
Inferior labial
- D.
Superficial temporal
- A.
- 17.
An anesthetic injection causes your patient to lose the ability to tightly close the eye. Which specific nerve was affected?
- A.
Ophthalmic division of the trigeminal
- B.
Infraorbital branch of the maxillary division of the trigeminal
- C.
Transverse facial nerve
- D.
Temporal branch of the facial
- A.
Chapter 5 Scalp and muscles of facial expression
- 18.
All of the following statements regarding facial anatomy are correct except :
- A.
There is deep fascia in the face region
- B.
The superficial fascia of the face has varying amounts of adipose tissue
- C.
The superficial muscular aponeurotic system (SMAS) is deep to the superficial fascia and provides a surgical plane for surgery of the face
- D.
The muscles of facial expression are also called mimetic muscles
- A.
- 19.
Compression of the temporofacial trunk of the facial nerve by a parotid gland tumor would make it the most difficult to perform which movement?
- A.
Depress the corner of the mouth
- B.
Purse the lips
- C.
Close an eye tightly
- D.
Smile
- A.
- 20.
If bacteria enter this superficial vein of the face, it is the least likely to lead to an infection of the dura mater in the cranial cavity (bacterial meningitis).
- A.
Deep facial vein
- B.
Superior opthalmic vein
- C.
Transverse facial vein
- D.
Inferior ophthalmic vein
- A.
- 21.
Your patient reports being unable to shave their face because the skin along the jaw is extremely sensitive/painful. A problem related to which nerve is most likely responsible for this?
- A.
Mandibular branch of the facial nerve
- B.
Ophthalmic division of the trigeminal nerve
- C.
Mandibular division of the trigeminal nerve
- D.
Maxillary division of the trigeminal nerve
- A.
Chapter 6 Parotid fossa and gland
- 22.
Excision of a parotid tumor requires careful attention to which anatomic structure(s) embedded in the gland in order to preserve optimal function?
- A.
Buccal branch of the mandibular division of the trigeminal nerve
- B.
Temporofacial and cervicofacial trunks of the facial nerve
- C.
Great auricular nerve from the cervical plexus
- D.
Medial pterygoid muscle
- A.
- 23.
A student developed pain near their temporomandibular joint (TMJ) and noticeable swelling below it after participating in an intraoral TMJ palpation lab. You note significant tenderness to light touch and swelling of the skin over the masseter muscle. What is the most likely cause of this condition?
- A.
Injury to the buccal branch(es) of the facial nerve
- B.
Parotid gland infection from inner cheek palpation near the maxillary molars
- C.
Inflammation of the lateral pterygoid muscle
- D.
Maxillary vein infection
- A.
- 24.
All of the following statements concerning the parotid gland are correct except :
- A.
The parotid gland receives parasympathetic innervation from the glossopharyngeal nerve
- B.
Parotid gland carcinoma is most likely to spread to the larynx first
- C.
The parotid gland is entirely serous in secretion
- D.
The external carotid artery passes within the substance of the parotid gland
- A.
Chapter 7 Temporal and infratemporal fossae
- 25.
A cranial fracture involving the foramen ovale results in compression of the nerve that passes through it. Which muscle on the side of the fracture will continue to function normally?
- A.
Temporalis
- B.
Lateral pterygoid
- C.
Buccinator
- D.
Medial pterygoid
- A.
- 26.
The anterior deep temporal nerve passes between the 2 heads of the lateral pterygoid muscle along with 1 additional nerve. What is the other nerve?
- A.
Buccal
- B.
Lingual
- C.
Posterior deep temporal
- D.
Inferior alveolar
- A.
- 27.
A clot blocking the maxillary artery immediately after it branches off the external carotid artery would limit blood flow to all of the following except :
- A.
Maxillary molars
- B.
Mandibular teeth
- C.
Muscles of mastication
- D.
Superior constrictor muscle
- A.
Chapter 8 Muscles of mastication
- 28.
Which muscle has the greatest potential to alter position of the TMJ capsule/disk complex because of its direct attachment to these structures?
- A.
Temporalis
- B.
Lateral pterygoid
- C.
Medial pterygoid
- D.
Masseter
- E.
Lateral pterygoid
- A.
- 29.
Which specific muscle component functions to retract the mandible?
- A.
Superficial head of the medial pterygoid
- B.
Lower head of the lateral pterygoid
- C.
Deep head of the masseter
- D.
Posterior fibers of the temporalis
- A.
Chapter 9 Temporomandibular joint
- 30.
Which nerve will be most affected by an injection of anesthetic into the temporomandibular joint?
- A.
Auriculotemporal
- B.
Posterior superior alveolar
- C.
Buccal branch (long buccal) of the mandibular division of the trigeminal nerve
- D.
Buccal branch(es) of the facial nerve
- A.
- 31.
For wide opening of the mouth to occur, what must happen biomechanically?
- A.
Pivoting of the coronoid process of the mandible
- B.
Posterior glide of the entire disk/joint capsule complex
- C.
Rotational movement in the lower TMJ compartment
- D.
Anterior translation in the upper TMJ compartment
- A.
- 32.
Which ligament attaches to the lingula and is believed to enable a pivoting action of the mandible by maintaining similar tension during both opening and closing of the mouth?
- A.
Stylomandibular ligament
- B.
Temporomandibular ligament
- C.
Sphenomandibular ligament
- D.
Medial collateral ligament
- A.
Chapter 10 Pterygopalatine fossa
- 33.
A tumor in the pterygopalatine fossa would have no effect on parasympathetic innervation of the:
- A.
Lacrimal gland
- B.
Palatine glands
- C.
Paranasal sinus glands
- D.
Sublingual gland
- A.
- 34.
Which anesthetic injection has the greatest chance of anesthesia reaching the pterygopalatine fossa?
- A.
Middle superior alveolar nerve through the maxilla, lateral wall of the maxillary sinus
- B.
Greater and lesser palatine nerves via the greater palatine canal
- C.
Inferior alveolar nerve near the mandibular foramen
- D.
Nasopalatine nerve via incisive canal
- A.
Chapter 11 Nose and nasal cavity
- 35.
Sometimes a bloody nose (epistaxis) will not stop bleeding and medical intervention is required to cauterize the artery. A clinician must know all potential contributing vessels to diagnose and treat this dangerous condition. Which of the following is a branch from an artery off the internal carotid that contributes to the vascular supply of the nasal septum?
- A.
Septal branch of the superior labial
- B.
Greater palatine
- C.
Anterior ethmoid
- D.
Sphenopalatine
- E.
Septal branch from the superior labial artery
- A.
- 36.
An individual with a maxillary sinus infection will experience drainage directly into which area of the nasal cavity?
- A.
Superior meatus
- B.
Middle meatus
- C.
Inferior meatus
- D.
Nasopharynx
- A.
Chapter 12 Paranasal sinuses
- 37.
Tears from the lacrimal gland drain to the nasolacrimal duct, which conducts the fluid into the:
- A.
Sphenoethmoid recess
- B.
Superior meatus
- C.
Middle meatus
- D.
Inferior meatus
- A.
- 38.
Which paranasal sinus is most prone to sinusitis?
- A.
Anterior ethmoid
- B.
Posterior ethmoid
- C.
Maxillary
- D.
Frontal
- A.
Chapter 13 Oral cavity
- 39.
A patient that is unable to taste a sweet substance on the tip of their tongue most likely has a lesion of which cranial nerve?
- A.
Facial
- B.
Glossopharyngeal
- C.
Hypoglossal
- D.
Trigeminal
- A.
- 40.
A patient complains of pain and swelling in the floor of their mouth under the tongue. A “stone” (sialolith) is found to be blocking the duct that releases saliva into the oral cavity at the sublingual papilla. What gland drains into the duct that empties at the sublingual papilla?
- A.
Sublingual gland
- B.
Parotid gland
- C.
Buccal gland
- D.
Submandibular gland
- A.
Chapter 14 Tongue
- 41.
Which vessel would be at the greatest risk during excision and removal of a tumor at the base of the tongue (pharyngeal region)?
- A.
Dorsal lingual artery
- B.
Deep lingual artery
- C.
Sublingual artery
- D.
External carotid artery
- A.
- 42.
If performing surgery to remove a blockage (sialolithiasis) of the submandibular duct, what is the important anatomic structure that crosses immediately underneath it that you should be aware of?
- A.
Hypoglossal nerve
- B.
Lingual artery
- C.
Lingual nerve
- D.
Chorda tympani
- A.
Chapter 15 Pharynx
- 43.
An “open mouth” radiograph is commonly taken after a traumatic cervical injury in order to optimally assess which vertebrae?
- A.
1st and 2nd cervical
- B.
2nd and 3rd cervical
- C.
3rd and 4th cervical
- D.
4th and 5th cervical
- A.
- 44.
If the glossopharyngeal nerve was compressed or lesioned, which of the following is most likely to occur?
- A.
No sensory changes within the pharynx and no difficulties swallowing
- B.
Some loss of sensation within the pharynx but no change in swallowing
- C.
No sensory changes within the pharynx but some difficulty swallowing because of paralysis of a pharyngeal muscle
- D.
Some loss of sensation within the pharynx and difficulty swallowing because of paralysis of a pharyngeal muscle
- A.
Chapter 16 Larynx
- 45.
While having a meal at a restaurant, you notice a commotion at a nearby table. Someone is choking and their family is calling for help. The appropriate first aid procedures do not work, so you choose to establish an emergency airway via a small midline incision. What is the correct anatomic location for this procedure?
- A.
Between the 1st and 2nd tracheal rings
- B.
At the superior notch of the thyroid cartilages
- C.
Between the thyroid and cricoid cartilages
- D.
Between the 2nd and 3rd tracheal rings
- A.
- 46.
A nerve closely located near the thyroid gland was cut during surgery to remove a thyroid tumor. This resulted in the patient’s voice sounding “hoarse,” but no other noticeable signs or symptoms are reported by the individual. What nerve was lesioned?
- A.
Recurrent laryngeal
- B.
Internal laryngeal
- C.
External laryngeal
- D.
Vagus
- A.
Chapter 17 Cervical fascia
- 47.
Bacteria from a tooth abscess can potentially be fatal. An infection found in which of the following areas would be the most concerning?
- A.
Maxillary sinus
- B.
Posterior to the alar fascia and anterior to the prevertebral fascia
- C.
Buccal space
- D.
Submandibular space
- A.
Chapter 18 Ear
- 48.
More common in children, bacteria-filled mucus from an upper respiratory tract infection can travel from the nasal passages and nasopharynx to the middle ear and cause an infection. How does this mucus reach the middle ear cavity?
- A.
Tympanic canaliculus
- B.
Mastoid antrum
- C.
Facial canal
- D.
Auditory tube
- A.
Chapter 19 Eye and orbit
- 49.
A superficial infection of the face can make its way from the superficial face to the pterygoid plexus of veins and ultimately to the cavernous sinus. Inflammation of the cavernous sinus is likely to result in which of the following signs?
- A.
Difficulty visually tracking a moving object
- B.
A dilated pupil
- C.
Redness of the sclera (i.e., “bloodshot” eye)
- D.
Bulging of the eyeball
- A.
Chapter 20 Autonomics of the head and neck
- 50.
Parasympathetic fibers innervating the head and neck do not originate from this cranial nerve:
- A.
Oculomotor
- B.
Trigeminal
- C.
Facial
- D.
Glossopharyngeal
- A.
- 51.
A tumor compressing the lesser petrosal nerve would result in:
- A.
Decreased serous saliva production
- B.
Constriction of the pupil
- C.
Inflammation of the nasal passages
- D.
Loss of taste
- A.
Chapter 21 Intraoral injections
- 52.
The following areas are anesthetized in a maxillary division block except the :
- A.
3rd maxillary molars
- B.
Lower lip
- C.
Maxillary palatal gingiva
- D.
Lower maxillary buccal gingiva
- A.
- 53.
What is the greatest concern associated with the nerve block that anesthetizes the infraorbital, anterior superior, and middle superior alveolar nerves?
- A.
Potential lack of complete anesthesia of a maxillary premolar
- B.
Injection of anesthesia into the eye
- C.
Slight risk of permanent loss of taste
- D.
Significant potential for hematoma
- A.
- 54.
A periodontal ligament injection is most effective for achieving ________________.
- A.
3rd molar anesthesia
- B.
Pulpal anesthesia of a single tooth
- C.
2nd molar anesthesia
- D.
Palatal gingiva and mucosa anesthesia of teeth anterior to the premolars
- A.
Chapter 22 Dental implants
- 55.
While working on placing an implant for tooth #32 (Universal Numbering System), you accidentally injure the lingual gingiva. Branches from which nerve are most likely supplying the involved tissue?
- A.
Infraorbital
- B.
Inferior alveolar
- C.
Lingual
- D.
Superior alveolar
- E.
Glossopharyngeal
- A.
- 56.
A cone beam computed tomography (CBCT) scan of the mandible to screen for potential unexpected arterial branches in the operative area is especially important prior to implant surgery for which teeth (Universal Numbering System) because of the high risk of hemorrhage-related complications?
- A.
17, 32
- B.
5, 12
- C.
19, 30
- D.
25, 24
- E.
1, 16
- A.
- 57.
Innervation of the mesiobuccal root of the 1st maxillary molars is inconsistent because of the variability of the presence of what nerve?
- A.
Middle superior alveolar
- B.
Infraorbital
- C.
Anterior superior alveolar
- D.
Posterior superior alveolar
- E.
Greater palatine
- A.
Chapter 23 Introduction to upper limb, back, thorax, and abdomen
- 58.
You are working on the fractured teeth of a patient who had an accident while riding a bicycle. The patient reports landing on the “tip” (anatomic translation—acromion) of their shoulder and complains they are now having difficulty raising the affected arm overhead. Which joint has most likely been injured?
- A.
Elbow
- B.
Glenohumeral
- C.
1st costochondral
- D.
Sternoclavicular
- E.
Acromioclavicular
- A.
- 59.
Your patient recently had bypass surgery for coronary artery blockage. They report that their surgeon told them they were lucky they caught the problem because they had a high probability of not surviving if the involved artery became 100% blocked because it is the primary supplier of blood to the myocardium of the left ventricle. Which coronary artery is it?
- A.
Right marginal
- B.
Anterior interventricular
- C.
Posterior interventricular
- D.
Sinoatrial nodal branch of the right coronary artery
- E.
Circumflex branch of the left coronary
- A.
- 60.
Which artery (or arteries) provides the blood supply to the majority of the gastrointestinal system (duodenum [distal to the entrance of the bile duct], jejunum, ileum, cecum, appendix, ascending colon, and proximal two-thirds of the transverse colon)?
- A.
Celiac
- B.
Superior mesenteric
- C.
Inferior mesenteric
- D.
Anterior and posterior inferior pancreaticoduodenal
- E.
Sigmoid
- A.
Answers
1 C
2 A
3 B
4 C
5 E
6 C
7 B
8 A
9 D
10 A
11 D
12 A
13 B
14 B
15 D
16 B
17 D
18 A
19 C
20 C
21 C
22 B
23 C
24 B
25 C
26 A
27 D
28 B
29 D
30 A
31 D
32 C
33 D
34 B
35 C
36 B
37 D
38 C
39 A
40 D
41 A
42 C
43 A
44 D
45 C
46 A
47 B
48 D
49 A
50 B
51 A
52 B
53 B
54 B
55 C
56 D
57 A
58 E
59 B
60 B
Stay updated, free dental videos. Join our Telegram channel
VIDEdental - Online dental courses
