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Which of the following effects is prevented on the target nerve during the administration of a local anesthetic agent?
Resting potential
Action potential
Refractory period
Repolarization
Action potential
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Sympathetic and parasympathetic nerves are
antagonistic to one another. BOTH nerve systems function as part of the somatic nervous system.
Both statements are true.
Both statements are false.
The first statement is true; the second is false.
The first statement is false; the second is true.
The first statement is true; the second is false
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Which of the following actions could result from involvement by the efferent part of the fifth cranial nerve?
Puckering the lips
Feeling of pain when biting the tongue
Toothache in the jawbone
Chewing a piece of gum
Chewing a piece of gum
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Which of the following skull foramina are associated with the pathway of the seventh cranial nerve from the brain to the facial region?
Foramen ovale and foramen rotundum
Foramen spinosum and external acoustic meatus
Internal acoustic meatus and external acoustic meatus
Internal acoustic meatus and stylomastoid foramen
Internal acoustic meatus and stylomastoid foramen
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When a patient complains of pain associated with a burn caused by hot coffee on the anterior dorsal surface of the tongue, which of the following nerves transmits this pain?
Glossopharyngeal nerve
Facial nerve
Vestibulocochlear nerve
Hypoglossal nerve
Facial nerve
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Discomfort from an infection of BOTH the frontal and ethmoidal sinuses would be associated with involvement of which of the following nerves?
Facial nerve
Frontal nerve
Nasociliary nerve
Optic nerve
Nasociliary nerve
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Which of the following nerves listed below does NOT form the maxillary nerve in the pterygopalatine fossa?
Nasopalatine nerve
Infraorbital nerve
Incisive nerve
Anterior superior alveolar nerve
Incisive nerve
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During a dental procedure on the buccal surface of the maxillary molars, a patient reports discomfort in the buccal gingival tissue. Which of the following nerves carries this sensation to the brain?
Buccal nerve
Posterior superior alveolar nerve
Zygomaticofacial nerve
Chorda tympani nerve
Posterior superior alveolar nerve
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During a surgical procedure on the posterior hard palate, which of the following nerves MUST be anesthetized to provide patient comfort?
Nasopalatine nerve
Posterior superior alveolar nerve
Greater palatine nerve
Lesser palatine nerve
Greater palatine nerve
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Which of the following nerves communicates with the lingual nerve in the submandibular ganglion?
Chorda tympani nerve
Hypoglossal nerve
Greater petrosal nerve
Mylohyoid nerve
Chorda tympani nerve
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After administration of an inferior alveolar nerve block, the patient reports that the lingual gingival tissue of the mandibular premolars and molars is still sensitive. Which nerve provides sensation from the gingival tissue in this area?
Mylohyoid nerve
Lingual nerve
Mental nerve
Incisive nerve
Lingual nerve
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Which of the following nerve branches of the facial nerve supplies motor innervation to the buccinator, risorius, and upper lip muscles?
Temporal nerve branch
Zygomatic nerve branch
Buccal nerve branch
Mandibular nerve branch
Buccal nerve branch
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Which of the following pair of nerves merges posterior to the mental foramen to form the inferior alveolar nerve?
Incisive and lingual nerves
Incisive and mental nerves
Mylohyoid and mental nerves
Mylohyoid and dental plexus nerves
Incisive and mental nerves
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Which of the following structures are innervated by the motor fibers within the mandibular division of the trigeminal nerve?
Muscles of mastication
All parts of the tongue
Sternocleidomastoid muscle
Submandibular salivary glands
Muscles of mastication
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After a serious car accident, a fracture of the ramus of the mandible has damaged nerves within the mandibular canal. The tissue MOST likely to be affected by this nerve damage would be the
tongue.
posterior buccal mucosa.
lingual alveolar mucosa.
mandibular teeth
mandibular teeth
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Which of the following structures is innervated by the vagus nerve?
Parotid salivary gland
Floor of the mouth
Sternocleidomastoid muscle
Soft palate muscles
Soft palate muscles
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Which of the following nerves is NOT part of the maxillary division of the trigeminal nerve?
Anterior superior alveolar nerve
Infraorbital nerve
Buccal nerve
Zygomaticotemporal nerve
Buccal nerve
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Which of the following associations of nerve to bony opening is INCORRECT?
Mandibular division of the trigeminal nerve: foramen ovale
Olfactory nerve: cribriform plate
Oculomotor nerve: inferior orbital fissure
Vagus nerve: jugular foramen
Oculomotor nerve: inferior orbital fissure
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Where does the infraorbital nerve receive the posterior superior alveolar nerve in order to form the maxillary nerve?
Infratemporal fossa
Inferior orbital fissure
Maxillary tuberosity
Pterygopalatine fossa
Pterygopalatine fossa
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Which of the following nerves carry pulpal
sensations from the maxillary canine?
Nasopalatine nerve
Anterior superior alveolar nerve
Middle superior alveolar nerve
Greater palatine nerve
Anterior superior alveolar nerve
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Which of the following nerves provide motor
innervation to the floor of the mouth?
Inferior alveolar nerve
Hypoglossal nerve
Glossopharyngeal nerve
Mylohyoid nerve
Mylohyoid nerve
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Which part of the brain is involved in the regulation of BOTH the heartbeat and breathing?
Medulla
Pons
Cerebellum
Midbrain
Medulla
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Branches of the facial nerve traverse all of the following openings EXCEPT the
foramen rotundum.
internal auditory meatus.
stylomastoid foramen.
pterygoid canal
foramen rotundum.
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Which of the following nerves convey
parasympathetic fibers to the lacrimal gland?
Chorda tympani nerve
Occulomotor nerve
Glossopharyngeal nerve
Zygomatic nerve
None of the above
None of the above
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What structure could be DIRECTLY damaged resulting in disruption of the nasopalatine nerve?
Nasal bones
Nasal septum
Frontal bone
Bridge of nose
Nasal septum
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MULTIPLE ANSWERS
From the following list of descriptions, select those which can be used for the middle superior alveolar nerve (MSA).
Present in all patients
Communicates with adjacent nerves
May be absent in some patients
Never communicates with adjacent nerves
- Communicates with adjacent nerves
- May be absent in some patients
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MULTIPLE ANSWERS
From the following list of nerves, select those nerves that supply the parotid salivary gland.
Glossopharyngeal nerve
Hypoglossal nerve
Auriculotemporal nerve
Facial nerve
Accessory nerve
- Glossopharyngeal nerve
- Auriculotemporal nerve
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MULTIPLE ANSWERS
From the following list of terms, select those terms that can be used to describe the part of the fifth cranial nerve that is formed by the merger of two trunks.
Second division
Maxillary nerve
Third division (V3)
Mandibular nerve
- Third division (V3)
- Mandibular nerve
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MULTIPLE ANSWERS
From the list of regions of the oral cavity, select the regions where crossover of nerves occurs in the jaws of patients which may complicate local anesthesia procedures.
Maxillary anterior sextant
Maxillary posterior sextants
Mandibular anterior sextant
Mandibular posterior sextants
- Maxillary anterior sextant
- Mandibular anterior sextant
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MULTIPLE ANSWERS
From the following list of descriptions, select those which can be used for the chorda tympani nerve.
Afferent taste sensation for base of tongue
The lingual nerve that communicates with the pterygopalatine ganglion
Parasymphathetic efferent nerve for salivary glands
Exits the skull by way of the petrotympanic fissure
- Parasymphathetic efferent nerve for salivary glands
- Exits the skull by way of the petrotympanic fissure
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