Head&neck8

Which of the following effects is prevented from occurring on the target nerve during the administration of a local anesthetic agent?

a. Resting potential

b. Action potential

c. Refractory period

d. Repolarization

b. Action potential

Sympathetic and parasympathetic nerves are antagonistic to one another. BOTH nerve systems function as part of the somatic nervous system.

a. Both statements are true.

b. Both statements are false.

c. The first statement is true; the second is false.

d. The first statement is false; the second is true

c. The first statement is true; the second is false.

3. Which of the following actions could result from involvement by the efferent part of the fifth cranial nerve?

a. Puckering the lips

b. Feeling when biting the tongue

c. Toothache in the jaw

d. Chewing a piece of gum

d. Chewing a piece of gum

4. Which of the following skull foramina are associated with the pathway of the seventh cranial nerve from the brain to the facial region?

a. Foramen ovale and foramen rotundum

b. Foramen spinosum and external acoustic meatus

c. Internal acoustic meatus and external acoustic meatus

d. Chewing a piece of gum

d. Chewing a piece of gum

When a patient complains of pain associated with a thermal burn caused by hot coffee on the anterior dorsal surface of the tongue, which of the following nerves transmits this pain?

a. Glossopharyngeal nerve

b. Facial nerve

c. Vestibulocochlear nerve

d. Hypoglossal nerve

b. Facial nerve

6. Discomfort from an infection of BOTH the frontal and ethmoidal sinuses would be associated with involvement of which of the following nerves?

a. Facial nerve

b. Frontal nerve

c. Nasociliary nerve

d. Optic nerve

c. Nasociliary nerve

Which of the following nerves listed below does NOT go on to form the maxillary nerve within the pterygopalatine fossa?

a. Nasopalatine nerve

b. Infraorbital nerve

c. Incisive nerve

d. Anterior superior alveolar nerve

c. Incisive nerve

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 and may need to be anesthetized?

a. Buccal nerve

b. Posterior superior alveolar nerve

c. Zygomaticofacial nerve

d. Chorda tympani nerve

b. Posterior superior alveolar nerve

9. During an oral surgical procedure on the posterior hard palate, which of the following nerves MUST be anesthetized to provide patient comfort?

a. Nasopalatine nerve

b. Posterior superior alveolar nerve

c. Greater palatine nerve

d. Lesser palatine nerve

c. Greater palatine nerve

Which of the following nerves communicates with the lingual nerve within the submandibular ganglion?

a. Chorda tympani nerve

b. Hypoglossal nerve

c. Greater petrosal nerve

d. Mylohyoid nerve

a. Chorda tympani nerve

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 usually provides sensation from the gingival tissue in this area?

a. Mylohyoid nerve

b. Lingual nerve

c. Mental nerve

d. Incisive nerve

b. Lingual nerve

Which of the following nerve branches of the facial nerve supplies motor innervation to the buccinator, risorius, and upper lip muscles?

a. Temporal nerve branch

b. Zygomatic nerve branch

c. Buccal nerve branch

d. Mandibular nerve branch

c. Buccal nerve branch

13. Which of the following pairs of nerves merges posterior to the mental foramen to form the inferior alveolar nerve?

a. Incisive and lingual nerves

b. Incisive and mental nerves

c. Mylohyoid and mental nerves

d. Mylohyoid and inferior dental plexus nerves

b. Incisive and mental nerves

Which of the following structures is/are innervated by the motor fibers within the mandibular nerve or third division of the trigeminal nerve?

a. Muscles of mastication

b. All parts of the tongue

c. Sternocleidomastoid muscle

d. Submandibular salivary gland

a. Muscles of mastication

After a serious car accident, a fracture of the patient's mandibular ramus has damaged nerve tissue within the mandibular canal. The associated oral structures or tissue MOST likely to be affected by this nerve damage would be the

a. tongue.

b. posterior buccal mucosa.

c. lingual alveolar mucosa.

d. mandibular teeth.

d. mandibular teeth.

Which of the following structures listed below is innervated by the vagus nerve?

a. Parotid salivary gland

b. Floor of the mouth

c. Sternocleidomastoid muscle

d. Soft palate muscles

d. Soft palate muscles

Which of the following nerves is NOT part of the maxillary nerve or second division of the trigeminal nerve?

a. Anterior superior alveolar nerve

b. Infraorbital nerve

c. Buccal nerve

d. Zygomaticotemporal nerve

c. Buccal nerve

Which of the following pairings of nerve to bony opening is INCORRECT?

a. Mandibular nerve, foramen ovale

b. Olfactory nerve, cribriform plate

c. Oculomotor nerve, inferior orbital fissure

d. Vagus nerve, jugular foramen

c. Oculomotor nerve, inferior orbital fissure

19. Where does the infraorbital nerve receive the posterior superior alveolar nerve in order to form the maxillary nerve?

a. Infratemporal fossa

b. Inferior orbital fissure

c. Maxillary tuberosity

d. Pterygopalatine fossa

d. Pterygopalatine fossa

Which of the following nerves carry pulpal sensations from the maxillary canine?

a. Nasopalatine nerve

b. Anterior superior alveolar nerve

c. Middle superior alveolar nerve

d. Greater palatine nerve

b. Anterior superior alveolar nerve

Which of the following nerves provides motor innervation to the floor of the mouth?

a. Inferior alveolar nerve

b. Hypoglossal nerve

c. Glossopharyngeal nerve

d. Mylohyoid nerve

d. Mylohyoid nerve

22. Which part of the brain is involved in the regulation of BOTH the heartbeat and breathing?

a. Medulla

b. Pons

c. Cerebellum

d. Midbrain

a. Medulla

Branches of the facial nerve traverse all of the following openings EXCEPT the

a. foramen rotundum.

b. internal auditory meatus.

c. stylomastoid foramen.

d. pterygoid canal.

a. foramen rotundum.

Which of the following nerves convey parasympathetic fibers to the lacrimal gland?

a. Chorda tympani nerve

b. Oculomotor nerve

c. Glossopharyngeal nerve

d. Zygomatic nerve

d. Zygomatic nerve

What structure when DIRECTLY damaged also results in the disruption of the nasopalatine nerve?

a. Nasal bones

b. Nasal septum

c. Frontal bone

d. Bridge of nose

b. Nasal septum

When periodontal scaling on the palatal gingival tissue of the maxillary right second molar under block anesthesia administered ONLY to the maxillary right posterior sextant, the patient begins to gag without initiation by the clinician. What nerve was inadvertently anesthetized so as to cause this situation?

a. Nasopalatine nerve

b. Greater palatine nerve

c. Lesser palatine nerve

d. Middle superior alveolar nerve

c. Lesser palatine nerve

From the following list of descriptions, select those that can be used to describe the middle superior alveolar nerve. (Select all that apply.)

a. Present in all patients

b. Communicates with adjacent nerves

c. May be absent in some patients

d. Never communicates with adjacent nerves

b,c (b. Communicates with adjacent nerves and c. May be absent in some patients)

From the following list of nerves, select those nerves that supply the parotid salivary gland. (Select all that apply.)

a. Glossopharyngeal nerve

b. Hypoglossal nerve

c. Auriculotemporal nerve

d. Facial nerve

e. Accessory nerve

a,c (a. Glossopharyngeal nerve and c. Auriculotemporal nerve)

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. (Select all that apply.)

a. Second division

b. Maxillary nerve

c. Third division

d. Mandibular nerve

c,d (c. Third division and d. Mandibular nerve)

4. From the list of regions of the oral cavity, select the regions where crossover-innervation occurs in the jaws of patients that may complicate local anesthesia procedures. (Select all that apply.)

a. Maxillary anterior sextant

b. Maxillary posterior sextants

c. Mandibular anterior sextant

d. Mandibular posterior sextants

a,c (a. Maxillary anterior sextant and c. Mandibular anterior sextant)

5. From the following list of descriptions, select those that can be used to describe the chorda tympani nerve. (Select all that apply.)

a. Afferent taste sensation for base of the tongue

b. Communicates with the lingual nerve via the pterygopalatine ganglion

c. Parasympathetic efferent nerve for the salivary glands

d. Exits the skull by way of the petrotympanic fissure

c,d (c. Parasympathetic efferent nerve for the salivary glands and d. Exits the skull by way of the petrotympanic fissure)

Which of the following local anesthetic nerve blocks can be administered that will anesthetize the inferior alveolar nerve? (Select all that apply.)

a. Incisive nerve block

b. Gow-Gates nerve block

c. Inferior alveolar nerve block

d. Vazirani-Akinosi mandibular block

b,c,d (b. Gow-Gates nerve block, c. Inferior alveolar nerve block, d. Vazirani-Akinosi mandibular block)

What should a clinician expect when working on a patient with a history of trigeminal neuralgia? (Select all that apply.)

a. Unilaterally involves the maxillary or mandibular branches

b. Usually more involvement of the left side of the face

c. Pattern of pain follows along the seventh cranial nerve branch involved

d. Excruciating short-term pain when facial trigger zones are touched

a,d (a. Unilaterally involves the maxillary or mandibular branches, d. Excruciating short-term pain when facial trigger zones are touched)

Place the following in the CORRECT order of occurrence after rapid depolarization of the cell membrane happens.

a. Sodium gates suddenly open in the membrane to allow sodium ions to pour in.

b. Rapid depolarization of the cell membrane results in an action potential.

c. Resting potential is reestablished again.

d. Propagation of the nerve impulse along the membrane occurs.

e. Sodium gates close and potassium channels open to allow potassium ions to pass to the outside of the membrane.

b,d,a,e,c

b. Rapid depolarization of the cell membrane results in an action potential.

d. Propagation of the nerve impulse along the membrane occurs.

a. Sodium gates suddenly open in the membrane to allow sodium ions to pour in.

e. Sodium gates close and potassium channels open to allow potassium ions to pass to the outside of the membrane.

c. Resting potential is reestablished again.

From the following list of terms related to the nervous system, match the more commonly used term with its alternative term.

a. Motor nerve

b. Sensory nervous system

c. Sensory nerve

d. Motor nervous system

1. Afferent nervous system

2. Afferent nerve

3. Efferent nervous system

4. Efferent nerve

1. Afferent nervous system -b. Sensory nervous system

2. Afferent nerve -c. Sensory nerve

3. Efferent nervous system -d. Motor nervous system

4. Efferent nerve -a. Motor nerve