Block 5 Anatomy,Infratemporal,Fossa,Oral,CA Vit,Prt,2

22 Questions | By Chachelly | Last updated: Mar 21, 2022 | Total Attempts: 116

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1.

In acute inflammation (arthritis) of the TMJ, the muscle most likely to be affected by the inflammatory process is the:
- A.
  
  Temporal
- B.
  
  Medial pterygoid
- C.
  
  Masseter
- D.
  
  Lateral pterygoid
2.

In explaining the pain caused by the drilling of a mandibular molar tooth crown to a freshman medical student, a dentist identified the nerve conducting the pain sensations as the:
- A.
  
  Lingual
- B.
  
  Mylohyoid
- C.
  
  Inferior alveolar
- D.
  
  Buccal
3.

The temporomandibular joint is characterized by all EXCEPT:
- A.
  
  A capsule strengthened by ligaments on its lateral side only
- B.
  
  A completely flat surface for its gliding action
- C.
  
  An articular disc
- D.
  
  Extracapsular ligaments
- E.
  
  Two joint cavities of different shapes
4.

In dislocation of the jaw, displacement of the articular disc beyond the articular tubercle of the temporomandibular joint results from excessive contraction of which muscle?
- A.
  
  Buccinator
- B.
  
  Lateral pterygoid
- C.
  
  Medial pterygoid
- D.
  
  Masseter
- E.
  
  Temporalis
5.

Sympathetic fibers reach the tongue by way of the:
- A.
  
  Lingual nerve
- B.
  
  Maxillary artery
- C.
  
  Hypoglossal nerve
- D.
  
  Lingual artery
- E.
  
  Glossopharyngeal nerve
6.

After a radiograph revealed a sialolith (stone) in a patient's right submandibular duct, the surgeon exposed the duct via an intraoral approach. In this approach, what tissues or structures must be cut through?
- A.
  
  Mucous membrane only
- B.
  
  Mucous membrane and genioglossus muscle
- C.
  
  Mucous membrane and mylohyoid muscle
- D.
  
  Mucous membrane and hyoglossus muscle
7.

Damage of the lingual nerve before it is joined by the chorda tympani in the infratemporal fossa would cause loss of:
- A.
  
  General sensation to the anterior two thirds of the tongue
- B.
  
  General sensation to the posterior one third of the tongue
- C.
  
  Secretion of the submandibular gland
- D.
  
  Taste sensation from the anterior two thirds of the tongue
- E.
  
  Taste sensation from the posterior one third of the tongue
8.

The teeth and gums separate the oral cavity proper from the:
- A.
  
  Nasal cavity
- B.
  
  Oral vestibule
- C.
  
  Oropharynx
- D.
  
  Paralingual space
- E.
  
  Submandibular space
9.

Examination of a patient with an ulcerative carcinoma of the posterior third of the tongue revealed bleeding from the lesion and difficulty swallowing (dysphagia). The bleeding was seen to be arterial; which of the following arteries was involved?
- A.
  
  Deep lingual
- B.
  
  Dorsal lingual
- C.
  
  Facial
- D.
  
  Sublingual
- E.
  
  Tonsillar
10.

Examination of a patient with an ulcerative carcinoma of the posterior third of the tongue revealed bleeding from the lesion and difficulty swallowing (dysphagia). The difficulty in swallowing was due to involvement of which muscle that elevates the tongue?
- A.
  
  Genioglossus
- B.
  
  Hyoglossus
- C.
  
  Styloglossus
- D.
  
  Stylohyoid
- E.
  
  Stylopharyngeus
11.

Cutting of the hypoglossal nerve in the hypoglossal canal would not interrupt the nerve supply to the:
- A.
  
  Hyoglossus muscle
- B.
  
  Genioglossus muscle
- C.
  
  Palatoglossus muscle
- D.
  
  Styloglossus muscle
12.

The contents of the paralingual space do NOT include the:
- A.
  
  Hypoglossal nerve
- B.
  
  Lingual artery
- C.
  
  Lingual nerve
- D.
  
  Submandibular gland
- E.
  
  Sublingual gland
13.

A patient is unable to taste a piece of sugar placed on the anterior part of the tongue. Which cranial nerve is most likely to have a lesion?
- A.
  
  Facial nerve
- B.
  
  Glossopharyngeal nerve
- C.
  
  Hypoglossal nerve
- D.
  
  Trigeminal nerve
- E.
  
  Vagus nerve
14.

The chorda tympani contains which component before it joins the lingual nerve?
- A.
  
  Preganglionic sympathetics
- B.
  
  Postganglionic sympathetics
- C.
  
  Preganglionic parasympathetics
- D.
  
  Postganglionic parasympathetics
- E.
  
  Taste fibers to the posterior third of the tongue
15.

The cell bodies of the taste fibers from the anterior two-thirds of the tongue are located in the:
- A.
  
  Geniculate ganglion
- B.
  
  Otic ganglion
- C.
  
  Pterygopalatine ganglion
- D.
  
  Submandibular ganglion
- E.
  
  Trigeminal ganglion
16.

Which of the following structures is located in the vestibule of the oral cavity?
- A.
  
  Tongue
- B.
  
  Opening of the parotid duct
- C.
  
  Opening of the submandibular duct
- D.
  
  Sublingual fold
- E.
  
  Uvula
17.

When one presses the tongue tip against the anterior (incisor) teeth, which of the following muscles must contract?
- A.
  
  Styloglossus
- B.
  
  Hyoglossus
- C.
  
  Genioglossus
- D.
  
  Superior longitudinal
- E.
  
  Verticalis
18.

The muscle responsible for raising the floor of the mouth in the early stages of swallowing is the:
- A.
  
  Genioglossus
- B.
  
  Geniohyoid
- C.
  
  Hyoglossus
- D.
  
  Mylohyoid
- E.
  
  Palatoglossus
19.

The cell bodies of the postganglionic parasympathetic neurons innervating the sublingual gland are found in which of the following ganglia?
- A.
  
  Ciliary
- B.
  
  Otic
- C.
  
  Submandibular
- D.
  
  Superior cervical
- E.
  
  Trigeminal
20.

A 46-year-old female patient comes to the emergency department complaining of pain in the area just below her mandible on the right side of her face. She says that the pain is particularly severe when she eats. The area of the submandibular gland is tender and swollen, as is the area in the floor of her mouth lateral to the tongue. You suspect a stone in the submandibular duct, and a plain film radiograph shows a density in that region consistent with a stone. In order to remove the stone, the duct must be incised in the floor of the mouth. What nerve, that loops around the duct, is in danger in such an incision?
- A.
  
  Chorda Tympani
- B.
  
  Glossopharyngeal
- C.
  
  Hypoglossal
- D.
  
  Internal branch of the superior laryngeal
- E.
  
  Lingual
21.

In accessing the submandibular gland in the submandibular triangle, what vessel coursing through the gland and triangle would need to be protected?
- A.
  
  External jugular vein
- B.
  
  Facial artery
- C.
  
  Maxillary artery
- D.
  
  Retromandibular vein
- E.
  
  Superior thyroid artery
22.

All of the following may be found in the paralingual space EXCEPT:
- A.
  
  Hypoglossal nerve
- B.
  
  Lingual nerve
- C.
  
  Sublingual gland
- D.
  
  Submandibular gland duct
- E.
  
  Superficial lobe of the submandibular gland