Nasal Cavity And Paranasal Sinuses Quiz!

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| By Sammit85

Sammit85

Community Contributor

Quizzes Created: 7 | Total Attempts: 12,758

Questions: 12 | Attempts: 7,491 | Updated: Mar 22, 2023

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Questions and Answers

1.

The nasal septum is formed by all the following EXCEPT:
- A.
  
  Perpendicular Plate
- B.
  
  Vomer
- C.
  
  Septal Cartilage
- D.
  
  Hard Palate
Correct Answer
D. Hard Palate

Explanation
The nasal septum is formed by the perpendicular plate, vomer, and septal cartilage. The hard palate, on the other hand, forms the roof of the mouth and separates the oral and nasal cavities. Therefore, the hard palate is not a component of the nasal septum.

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2.

A mother brings her newborn baby into your clinic because of a sinus infection. Which of the following is most likely the paranasal sinus infected?
- A.
  
  Maxillary
- B.
  
  Frontal
- C.
  
  Ethmoidal
- D.
  
  Sphenoidal
Correct Answer
A. Maxillary

Explanation
The Maxillary Sinus is the only sinus developed by birth. The Frontal, Ethmoidal, and Sphenoidal Sinus develop by 2 years of age.

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3.

A patient comes to your clinic with normal sinusitis. You decide to prescribe a "mucosal shrinking" medication to open up the sinuses. How should the patient hold his head when administering the medication?
- A.
  
  Head tilted directly backwards
- B.
  
  Lying down on back while looking directly up
- C.
  
  Head tilted directly forward while standing
- D.
  
  Lying down, with head hanging over the side of bed on affected side
Correct Answer
D. Lying down, with head hanging over the side of bed on affected side

Explanation
 Medication may just run down the floor of the nasal cavity into the nasopharynx if applied w/ head tilting backward

 Drops should be applied w/ patient lying on side w/ involved side of head down hanging over edge of bed, causing the lateral nasal wall to assume an inclined plane which will direct nose drops into middle meatus

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4.

A patient comes into your clinic complaining of pressure in the maxillary sinus area. You turn out the lights and shine a penlight over the maxillary sinus area. If the sinus is filled with mucus, what will you see?
- A.
  
  Light will produce a pink glow
- B.
  
  Sinus area will remain dark
- C.
  
  Light will produce a bright yellow glow
Correct Answer
B. Sinus area will remain dark

Explanation
Aeration of frontal or maxillary sinuses can be evaluated w/ a penlight in a dark room • If air-filled, the light will produce a pink glow • If the sinus is fluid or tumor filled it will remain dark

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5.

A patient complains of frontal sinus pressure. You determine that it is an infection and you administer mucosal shrinking medication. The mucus will then drain into the nasal cavity through which of the following?
- A.
  
  Semilunar Hiatus
- B.
  
  Spheno-ethmoidal recess
- C.
  
  Nasolacrimal Duct
- D.
  
  Sphenopalatine canal
Correct Answer
A. Semilunar Hiatus

Explanation
Frontal Sinuses drain into the middel meatus via the semilunar hiatus

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6.

Which of the following sinuses does not drain well gravitationally in an upright position and may cause tooth ache?
- A.
  
  Maxillary
- B.
  
  Sphenoid
- C.
  
  Ethmoid
- D.
  
  Frontal
Correct Answer
A. Maxillary

Explanation
Maxillary sinus usually drains when full because the opening is high in the sinus. The roots of the teeth extend into the sinus. For this reason, an infection in the sinus can cause pain.

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7.

Which of the following portions of the ethmoidal sinus does not drain into the Middle Nasal Meatus?
- A.
  
  Anterior
- B.
  
  Middle
- C.
  
  Posterior
Correct Answer
C. Posterior

Explanation
Posterior portion of the Ethmoidal Sinus drains into the Superior Nasal Meatus

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8.

A patient presents to you with a blockage in the semilunar hiatus, which of the following sinuses will still be able to drain?
- A.
  
  Anterior and Middle Portion of Ethmoidal
- B.
  
  Maxillary
- C.
  
  Frontal
- D.
  
  Sphenoidal
Correct Answer
D. SpHenoidal

Explanation
The only sinus that don't drain in through the semilunar hiatus are the Posterior Portion of Ethmoidal Sinus and the Sphenoidal Sinus.

Sphenoidal Sinus drains through the spheno-ethmoidal recess

Posterior Portion of Ethmoidal Sinus drains into the Superior Nasal Meatus

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9.

You are to perform surgery on a patient that has a pituitary tumor. through what sinus will you be able to access the pituitary tumor?
- A.
  
  Maxillary
- B.
  
  Ethmoidal
- C.
  
  Sphenoidal
- D.
  
  Frontal
Correct Answer
C. SpHenoidal

Explanation
This is the pathway by which surgeons can reach the pituitary gland.

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10.

A patient comes to you with an anterior nose bleed. You remember from medical school that anterior nose bleeds are from arteries in "Kiesselbach's Area." Which of the following would be the least likely artery to hemorrhage in the anterior nose bleed?
- A.
  
  Sphenopalatine A.
- B.
  
  Greater Palatine A.
- C.
  
  Superior Labial A.
- D.
  
  Ethmoidal A.
- E.
  
  Lateral Nasal A.
Correct Answer
E. Lateral Nasal A.

Explanation
“Kiesselbach’s area” receives arterial supply from 4 sources: Anastomoses b/w the sphenopalatine, greater palatine, superior labial & ethmoidal aa

Lateral Nasal Artery is a branch of the Superior Labial Artery but does not reach "kiesselbach's area"

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11.

Which of the following arteries reach the nasal cavity through the Incisive Canal?
- A.
  
  Sphenopalatine A.
- B.
  
  Greater Palatine A.
- C.
  
  Superior Labial A.
- D.
  
  Ethmoidal A.
Correct Answer
B. Greater Palatine A.

Explanation
o Sphenopalatine a (Sphenopalatine foramen)  terminal branch of maxillary a o Greater palatine (Incisive canal)  branch of maxillary a o Superior labial & lateral nasal aa (Naris)  branches of facial a o Anterior & posterior ethmoidal aa (canals in medial orbital wall b/w ethmoid labyrinth & frontal bone)  branches of ophthalmic a

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12.

Which of the following nerves are the sensory innervation of the Frontal Sinus?
- A.
  
  V-1
- B.
  
  V-2
- C.
  
  V-1 and V-2
- D.
  
  V-2 and V-3
Correct Answer
A. V-1

Explanation
Front Sinus is Innervated by supraorbital branches of ophthalmic division (V1) – pain due to frontal sinusitis Ethmoidal Sinus is innervated by anterior & posterior ethmoidal branches of nasociliary n (V1) & orbital branches of V2 Maxillary Sinus is Innervated by V2 Sphenoidal Sinus is Innervated by branches of V1 & V2

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Current Version
Mar 22, 2023

Quiz Edited by
ProProfs Editorial Team
Sep 27, 2012

Quiz Created by
Sammit85

Nasal Cavity And Paranasal Sinuses Quiz!

The nasal septum is formed by all the following EXCEPT:

A mother brings her newborn baby into your clinic because of a sinus infection. Which of the following is most likely the paranasal sinus infected?

A patient comes to your clinic with normal sinusitis. You decide to prescribe a "mucosal shrinking" medication to open up the sinuses. How should the patient hold his head when administering the medication?

A patient comes into your clinic complaining of pressure in the maxillary sinus area. You turn out the lights and shine a penlight over the maxillary sinus area. If the sinus is filled with mucus, what will you see?

A patient complains of frontal sinus pressure. You determine that it is an infection and you administer mucosal shrinking medication. The mucus will then drain into the nasal cavity through which of the following?

Which of the following sinuses does not drain well gravitationally in an upright position and may cause tooth ache?

Which of the following portions of the ethmoidal sinus does not drain into the Middle Nasal Meatus?

A patient presents to you with a blockage in the semilunar hiatus, which of the following sinuses will still be able to drain?

You are to perform surgery on a patient that has a pituitary tumor. through what sinus will you be able to access the pituitary tumor?

A patient comes to you with an anterior nose bleed. You remember from medical school that anterior nose bleeds are from arteries in "Kiesselbach's Area." Which of the following would be the least likely artery to hemorrhage in the anterior nose bleed?

Which of the following arteries reach the nasal cavity through the Incisive Canal?

Which of the following nerves are the sensory innervation of the Frontal Sinus?