Maxillary nerve

MAXILLARY NERVE

Q. 1

Middle superior alveolar nerve is a branch of:

 A

Infra orbital nerve

 B

Nasal branch of maxillary nerve

 C

Mandibular branch of trigeminal nerve

 D

None of the above

Q. 1

Middle superior alveolar nerve is a branch of:

 A

Infra orbital nerve

 B

Nasal branch of maxillary nerve

 C

Mandibular branch of trigeminal nerve

 D

None of the above

Ans. A

Explanation:

Middle superior alveolar nerve is a branch of infra orbital nerve. It supplies the lateral wall of maxillary sinus, gingiva, mesial buccal root of the first molar, and all the root of the bicuspids.
 
Another nerve arising from the infra orbital nerve is anterior superior alveolar nerve. It innervates the anterior maxillary sinus, gingiva, cuspids, laterals and central incisors.
 
The 4 branches of the maxillary nerve are zygomatic, infraorbital, posterior superior alveolar and pterygopalatine. The pterygopalatine branch divides into greater palatine, lesser palatine and nasopalatine nerve.
 
Ref: Delmar’s Dental Assisting: A Comprehensive Approach  By Donna J. Phinney 2nd edn page 84.

Q. 2

Which of the following statement regarding the sensory nerve supply of pharyngeal mucous membrane is TRUE?

 A

Nasopharynx is supplied by the maxillary nerve

 B

Glossopharyngeal nerve innervates the oral pharynx

 C

Laryngeal pharynx is supplied by the internal laryngeal branch of vagus nerve

 D

All of the above

Q. 2

Which of the following statement regarding the sensory nerve supply of pharyngeal mucous membrane is TRUE?

 A

Nasopharynx is supplied by the maxillary nerve

 B

Glossopharyngeal nerve innervates the oral pharynx

 C

Laryngeal pharynx is supplied by the internal laryngeal branch of vagus nerve

 D

All of the above

Ans. D

Explanation:

Nerves providing sensory innervation of the nasopharynx are :
Maxillary nerve innervates nasopharynx, glossopharyngeal nerve innervates the oral pharynx and laryngeal pharynx is supplied by the internal laryngeal branch of vagus nerve.
 

Q. 3

All of the following are structures associated with pterygopalatine fossa, EXCEPT:

 A

Pterygopalatine ganglion

 B

Mid third of maxillary artery

 C

Maxillary nerve

 D

Greater petrosal nerve

Q. 3

All of the following are structures associated with pterygopalatine fossa, EXCEPT:

 A

Pterygopalatine ganglion

 B

Mid third of maxillary artery

 C

Maxillary nerve

 D

Greater petrosal nerve

Ans. B

Explanation:

The pterygopalatine fossa is the region between the pterygomaxillary fissure and the nasal cavity. 

  • The fossa accommodates branches of the maxillary nerve [cranial nerve (CN) V-2], the pterygopalatine ganglion, the terminal branches of the maxillary artery, and greater superficial petrosal nerve.
 

Q. 4

Middle superior alveolar nerve supplies upper premolar teeth. It is a branch of?

 A

Infraorbital portion of Maxillary nerve

 B

Palatine division of maxillary nerve

 C

Anterior nasal division of maxillary nerve

 D

Infraorbital nerve

Q. 4

Middle superior alveolar nerve supplies upper premolar teeth. It is a branch of?

 A

Infraorbital portion of Maxillary nerve

 B

Palatine division of maxillary nerve

 C

Anterior nasal division of maxillary nerve

 D

Infraorbital nerve

Ans. A

Explanation:

Ans:A.)Infraorbital portion of Maxillary nerve.

The middle superior alveolar nerve is a nerve that drops from the infraorbital portion of the maxillary nerve to supply the sinus mucosa, the roots of the maxillary premolars, and the mesiobuccal root of the first maxillary molar.

Branches of Maxillary Nerve
Its branches may be divided into four groups, depending upon where they branch off: in the cranium, in the pterygopalatine fossa, in the infraorbital canal, or on the face.

  • In the cranium
    • Middle meningeal nerve in the meninges
  • From the pterygopalatine fossa
    • Zygomatic nerve (zygomaticotemporal nerve, zygomaticofacial nerve), through the Zygomatic foramen
    • Nasopalatine nerve, through the sphenopalatine foramen
    • Posterior superior alveolar nerve
    • Greater and lesser palatine nerves
    • Pharyngeal nerve
  • In the infraorbital canal
    • Middle superior alveolar nerve
    • Anterior superior alveolar nerve
    • Infraorbital nerve
  • On the face
    • Inferior palpebral nerve
    • Superior labial nerve

Q. 5

Which of the following structure is passing through foramen rotundum?

 A

Maxillary artery

 B

Maxillary nerve

 C

Middle meningeal artery

 D

Spinal accessory nerve

Q. 5

Which of the following structure is passing through foramen rotundum?

 A

Maxillary artery

 B

Maxillary nerve

 C

Middle meningeal artery

 D

Spinal accessory nerve

Ans. B

Explanation:

Foramen rotundum located posterior to the medial end of the superior orbital fissure. The foramen rotundum transmits the maxillary nerve (CN V-2) en route to the pterygopalatine fossa. CN V-2 supplies the skin, teeth, and mucosa associated with the maxillary bone.

Q. 6

Middle craninal fossa is supplied by :

 A

Maxillary nerve

 B

Mandibular nerve

 C

Anterior ethmoidal nerve

 D

A & B

Q. 6

Middle craninal fossa is supplied by :

 A

Maxillary nerve

 B

Mandibular nerve

 C

Anterior ethmoidal nerve

 D

A & B

Ans. D

Explanation:

A i.e. Maxillary nerve; B i.e. Mandibular nerve



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