Nose and paranasal sinuses l human anatomy MCQs for dental students

 

MCQ on nose and paranasal sinuses for general human anatomy 

1. First sinus developed is:

a. Maxillary

b. Frontal

c. Sphenoidal

d. Ethmoidal.

2. The frontal paranasal sinus drains into the:

a. Superior meatus

b. Middle meatus

c. Inferior meatus

d. Spenoethmoidal recess

3. Sphenoidal air sinus is supplied by which nerve:

a. Posterior ethmoidal

b. Posterior superior

c. Sphenoidal

d. Infratemporal.

4. Nasolacrimal duct opens into:

a. Superior meatus

b. Middle meatus

c. Inferior meatus

d. None

5. Middle conchae of nose are a part of:

a. Nasal bone

b. Ethmoid

c. Vomer

d. Maxilla.

6. Nerve supply of nasal septum is from:

a. Facial

b. Ophthalmic

c. Maxillary

d. Ascending palatine.

7. Inferior concha is an extension of:

a. Ethmoid bone

b. Vomer

c. Nasal septum

d. Independent bone.

8. All are paranasal sinuses except:

a. Maxillary

b. Sphenoidal

c. Covernous

d. Ethmoidal.

9. The olfactory receptor cells are:

 (a) Unipolar neurons

(b) Bipolar neurons

(c) Pseudounipolar neurons

(d) Multipolar neurons

10. The nasolacrimal duct opens into:

 (a) Middle meatus of the nose

(b) Superior meatus of the nose

(c) Inferior meatus of the nose

(d) Vestibule of the nose

11. All of the following structures form nasal septum except:

 (a) Perpendicular plate of ethmoid

(b) Perpendicular plate of palatine

(c) Vomer

(d) Septal cartilage

12. All are parts of ethmoid bone except:

 (a) Superior nasal concha

(b) Middle nasal concha

(c) Inferior nasal concha

(d) Cribriform plate

13. The chief artery supplying the nasal mucosa is:

 (a) Greater palatine

(b) Sphenopalatine

(c) Anterior ethmoidal

(d) Posterior ethmoidal

14. All arteries take part in the formation of Kiesselbach’s plexus except:

 (a) Septal branch of sphenopalatine

(b) Septal branch of greater palatine

(c) Septal branch of posterior ethmoidal

(d) Septal branch of anterior ethmoidal

15. The chief nerve providing innervation to the nasal mucosa is:

 (a) Anterior ethmoidal

(b) Greater palatine

(c) Nasopalatine

(d) Posterior ethmoidal

16. The infection from the nasal cavity may spread to all of the following regions except:

 (a) Conjunctival sac

(b) Paranasal air sinuses

(c) Internal ear

(d) Anterior cranial fossa

17. The incorrect statement about nasal mucosa is that it is:

 (a) Lined by pseudostratified ciliated columnar epithelium

(b) Loosely adherent to the nasal septum

(c) Lined by olfactory epithelium

(d) Richly supplied with blood and contains cavernous spaces

18. Toothache in maxillary sinusitis occurs due to stimulation of:

 (a) Inferior alveolar nerve

(b) Superior alveolar nerves

(c) Greater palatine nerve

(d) Nasopalatine nerve

19. All the statements about sphenoidal air sinus are correct except

 (a) It drains into sphenoethmoidal recess

(b) It lies above and behind the nasal cavity

(c) It is related laterally to the cavernous sinus

(d) It drains into middle meatus

Select the incorrect statement about the maxillary sinus:

 (a) Its floor is formed by the lateral wall of the nose

(b) It is the largest air sinus

(c) Its apex extends into the zygomatic process

(d) It is most commonly infected of all the sinuses