Anatomy test on the nasal cavity and sinuses

Assess the knowledge of the anatomy of the nasal cavity and paranasal sinuses. The test examines their topography, bones, blood supply, innervation, and lymphatic drainage.

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1. Where does the maxillary sinus (sinus maxillaris) open?

Middle nasal meatus

The maxillary sinus opens into the middle nasal meatus through the hiatus semilunaris.
Superior nasal meatus

The maxillary sinus opens into the middle nasal meatus through the hiatus semilunaris.
Inferior nasal meatus

The maxillary sinus opens into the middle nasal meatus through the hiatus semilunaris.
Sphenethmoidal recess

The maxillary sinus opens into the middle nasal meatus through the hiatus semilunaris.
I find it difficult to answer

The maxillary sinus opens into the middle nasal meatus through the hiatus semilunaris.

2. Which anatomical structure opens into the inferior nasal meatus?

Frontal sinus

The nasolacrimal canal opens in the anterior part of the inferior nasal meatus.
Sphenoidal sinus

The nasolacrimal canal opens in the anterior part of the inferior nasal meatus.
Nasolacrimal duct

The nasolacrimal canal opens in the anterior part of the inferior nasal meatus.
Middle cells of ethmoid bone

The nasolacrimal canal opens in the anterior part of the inferior nasal meatus.
I find it difficult to answer

The nasolacrimal canal opens in the anterior part of the inferior nasal meatus.

3. Which artery provides the main blood supply to the posterior parts of the nasal cavity?

Facial artery

The sphenopalatine artery, a branch of the maxillary artery, supplies the posterior parts of the nasal cavity.
Anterior ethmoidal artery

The sphenopalatine artery, a branch of the maxillary artery, supplies the posterior parts of the nasal cavity.
Ascending palatine artery

The sphenopalatine artery, a branch of the maxillary artery, supplies the posterior parts of the nasal cavity.
Sphenopalatine artery

The sphenopalatine artery, a branch of the maxillary artery, supplies the posterior parts of the nasal cavity.
I find it difficult to answer

The sphenopalatine artery, a branch of the maxillary artery, supplies the posterior parts of the nasal cavity.

4. Which nerve provides sensory innervation to the anterior part of the nasal cavity’s mucosa?

Infraorbital nerve

The anterior ethmoidal nerve innervates the anterior part of the nasal mucosa, being a branch of the nasociliary nerve.
Anterior ethmoidal nerve

The anterior ethmoidal nerve innervates the anterior part of the nasal mucosa, being a branch of the nasociliary nerve.
Nasopalatine nerve

The anterior ethmoidal nerve innervates the anterior part of the nasal mucosa, being a branch of the nasociliary nerve.
Posterior nasal branches

The anterior ethmoidal nerve innervates the anterior part of the nasal mucosa, being a branch of the nasociliary nerve.
I find it difficult to answer

The anterior ethmoidal nerve innervates the anterior part of the nasal mucosa, being a branch of the nasociliary nerve.

5. Into which lymph nodes does lymph predominantly drain from the posterior parts of the nasal cavity?

Submandibular

Lymph from the posterior parts of the nose predominantly drains into the retropharyngeal and deep cervical lymph nodes.
Retropharyngeal and deep cervical

Lymph from the posterior parts of the nose predominantly drains into the retropharyngeal and deep cervical lymph nodes.
Submental

Lymph from the posterior parts of the nose predominantly drains into the retropharyngeal and deep cervical lymph nodes.
Mastoid

Lymph from the posterior parts of the nose predominantly drains into the retropharyngeal and deep cervical lymph nodes.
I find it difficult to answer

Lymph from the posterior parts of the nose predominantly drains into the retropharyngeal and deep cervical lymph nodes.

6. Where does the aperture of the sphenoid sinus (apertura sinus sphenoidalis) open into?

Into the superior nasal meatus.

The aperture of the sphenoid sinus is located in the sphenoethmoidal recess.
Into the middle nasal meatus.

The aperture of the sphenoid sinus is located in the sphenoethmoidal recess.
Into the sphenoethmoidal recess.

The aperture of the sphenoid sinus is located in the sphenoethmoidal recess.
Into the inferior nasal meatus.

The aperture of the sphenoid sinus is located in the sphenoethmoidal recess.
I find it difficult to answer

The aperture of the sphenoid sinus is located in the sphenoethmoidal recess.

7. Through which structure does the frontal sinus drain into the middle nasal meatus?

Sphenethmoidal recess

The frontal sinus drains through the ethmoidal funnel into the middle nasal meatus.
Blind foramen

The frontal sinus drains through the ethmoidal funnel into the middle nasal meatus.
Inferior nasal meatus

The frontal sinus drains through the ethmoidal funnel into the middle nasal meatus.
Ethmoidal funnel

The frontal sinus drains through the ethmoidal funnel into the middle nasal meatus.
I find it difficult to answer

The frontal sinus drains through the ethmoidal funnel into the middle nasal meatus.

8. Which part of the nasal cavity's mucosa is considered olfactory (regio olfactoria)?

Mucosa of the inferior nasal meatus

The olfactory region includes the mucosa of the superior nasal meatus and the adjacent superior part of the septum.
Mucosa of the superior nasal meatus and the superior part of the nasal septum

The olfactory region includes the mucosa of the superior nasal meatus and the adjacent superior part of the septum.
Mucosa at the floor of the nasal cavity

The olfactory region includes the mucosa of the superior nasal meatus and the adjacent superior part of the septum.
Nasal vestibule

The olfactory region includes the mucosa of the superior nasal meatus and the adjacent superior part of the septum.
I find it difficult to answer

The olfactory region includes the mucosa of the superior nasal meatus and the adjacent superior part of the septum.

9. Which bones contribute to the formation of the bony nasal septum?

Nasal bones and vomer

The bony septum is formed by the perpendicular plate of the ethmoid bone above and the vomer below.
Palatine bone and inferior nasal concha

The bony septum is formed by the perpendicular plate of the ethmoid bone above and the vomer below.
Perpendicular plate of ethmoid bone and vomer

The bony septum is formed by the perpendicular plate of the ethmoid bone above and the vomer below.
Lacrimal bone and ethmoid bone

The bony septum is formed by the perpendicular plate of the ethmoid bone above and the vomer below.
I find it difficult to answer

The bony septum is formed by the perpendicular plate of the ethmoid bone above and the vomer below.

10. Which arteries form the Kiesselbach's plexus (Kiesselbach area) in the anteroinferior part of the nasal septum?

Branches of the sphenopalatine, anterior ethmoidal, greater palatine, and superior labial arteries

Kiesselbach's area is richly vascularized by branches from the external and internal carotid arterial systems.
Branches of the posterior ethmoidal and infraorbital arteries

Kiesselbach's area is richly vascularized by branches from the external and internal carotid arterial systems.
Branches of the facial and superficial temporal arteries

Kiesselbach's area is richly vascularized by branches from the external and internal carotid arterial systems.
Branches of the ascending pharyngeal and lingual arteries

Kiesselbach's area is richly vascularized by branches from the external and internal carotid arterial systems.
I find it difficult to answer

Kiesselbach's area is richly vascularized by branches from the external and internal carotid arterial systems.

11. Which nerves provide sensory innervation to the posteroinferior part of the nasal cavity's mucosa?

Anterior ethmoidal nerves

The posterior nasal branches from the pterygopalatine ganglion innervate the posteroinferior regions.
Ophthalmic nerve

The posterior nasal branches from the pterygopalatine ganglion innervate the posteroinferior regions.
Optic nerve

The posterior nasal branches from the pterygopalatine ganglion innervate the posteroinferior regions.
Posterior nasal branches of the pterygopalatine ganglion

The posterior nasal branches from the pterygopalatine ganglion innervate the posteroinferior regions.
I find it difficult to answer

The posterior nasal branches from the pterygopalatine ganglion innervate the posteroinferior regions.

12. In which part of the nasal cavity are the cavernous venous plexuses (plexus cavernosi concharum) most prominent and prone to swell?

In the region of the superior nasal concha

Cavernous plexuses are most developed in the mucosa of the inferior nasal concha.
In the region of the inferior nasal concha and along the free margin of the middle

Cavernous plexuses are most developed in the mucosa of the inferior nasal concha.
At the nasal floor

Cavernous plexuses are most developed in the mucosa of the inferior nasal concha.
In the sphenoethmoidal recess

Cavernous plexuses are most developed in the mucosa of the inferior nasal concha.
I find it difficult to answer

Cavernous plexuses are most developed in the mucosa of the inferior nasal concha.

13. Where do the posterior ethmoidal air cells open?

Into the superior nasal meatus.

The posterior ethmoidal air cells traditionally open into the superior nasal meatus.
Into the middle nasal meatus.

The posterior ethmoidal air cells traditionally open into the superior nasal meatus.
Into the inferior nasal meatus.

The posterior ethmoidal air cells traditionally open into the superior nasal meatus.
Into the ethmoidal funnel

The posterior ethmoidal air cells traditionally open into the superior nasal meatus.
I find it difficult to answer

The posterior ethmoidal air cells traditionally open into the superior nasal meatus.

14. What does the nasal cavity communicate with via the choanae?

With the oral cavity

The choanae are paired openings connecting the posterior parts of the nasal cavity with the nasopharynx.
With the tympanic cavity

The choanae are paired openings connecting the posterior parts of the nasal cavity with the nasopharynx.
With the nasopharynx

The choanae are paired openings connecting the posterior parts of the nasal cavity with the nasopharynx.
With the laryngopharynx

The choanae are paired openings connecting the posterior parts of the nasal cavity with the nasopharynx.
I find it difficult to answer

The choanae are paired openings connecting the posterior parts of the nasal cavity with the nasopharynx.

15. What bony structures form the floor of the nasal cavity?

Perpendicular plates of the palatine bones

The floor of the nasal cavity (hard palate) is formed by the palatine processes of the maxilla and the horizontal plates of the palatine bone.
Palatine processes of the maxillae and horizontal plates of the palatine bones

The floor of the nasal cavity (hard palate) is formed by the palatine processes of the maxilla and the horizontal plates of the palatine bone.
Pterygoid processes of the sphenoid bone

The floor of the nasal cavity (hard palate) is formed by the palatine processes of the maxilla and the horizontal plates of the palatine bone.
Cribriform plate of the ethmoid bone

The floor of the nasal cavity (hard palate) is formed by the palatine processes of the maxilla and the horizontal plates of the palatine bone.
I find it difficult to answer

The floor of the nasal cavity (hard palate) is formed by the palatine processes of the maxilla and the horizontal plates of the palatine bone.

16. Into which venous plexus does venous outflow primarily occur from the posterior parts of the nasal cavity?

Cavernous sinus

Venous blood from the posterior parts of the nose predominantly drains into the pterygoid venous plexus.
Facial vein

Venous blood from the posterior parts of the nose predominantly drains into the pterygoid venous plexus.
Pharyngeal venous plexus

Venous blood from the posterior parts of the nose predominantly drains into the pterygoid venous plexus.
Pterygoid venous plexus

Venous blood from the posterior parts of the nose predominantly drains into the pterygoid venous plexus.
I find it difficult to answer

Venous blood from the posterior parts of the nose predominantly drains into the pterygoid venous plexus.

17. Which bony structure forms most of the upper wall (roof) of the nasal cavity?

Nasal bones

The cribriform plate of the ethmoid bone forms the main part of the roof of the nasal cavity.
Cribriform plate of the ethmoid bone

The cribriform plate of the ethmoid bone forms the main part of the roof of the nasal cavity.
Nasal spine of the frontal bone

The cribriform plate of the ethmoid bone forms the main part of the roof of the nasal cavity.
Body of the sphenoid bone

The cribriform plate of the ethmoid bone forms the main part of the roof of the nasal cavity.
I find it difficult to answer

The cribriform plate of the ethmoid bone forms the main part of the roof of the nasal cavity.

18. On which wall of the maxillary sinus is its maxillary hiatus situated (hiatus maxillaris)?

On the medial (nasal) wall

The aperture of the maxillary sinus is located on its medial wall, bordering the nasal cavity.
On the superior (orbital) wall

The aperture of the maxillary sinus is located on its medial wall, bordering the nasal cavity.
On the inferior (alveolar) wall

The aperture of the maxillary sinus is located on its medial wall, bordering the nasal cavity.
On the anterior (facial) wall

The aperture of the maxillary sinus is located on its medial wall, bordering the nasal cavity.
I find it difficult to answer

The aperture of the maxillary sinus is located on its medial wall, bordering the nasal cavity.

19. Through which foramen does the nasal cavity communicate with the pterygopalatine fossa?

Foramen lacerum

The sphenopalatine foramen connects the nasal cavity and pterygopalatine fossa, allowing vessels and nerves to pass.
Sphenopalatine foramen

The sphenopalatine foramen connects the nasal cavity and pterygopalatine fossa, allowing vessels and nerves to pass.
Foramen rotundum

The sphenopalatine foramen connects the nasal cavity and pterygopalatine fossa, allowing vessels and nerves to pass.
Incisive foramen

The sphenopalatine foramen connects the nasal cavity and pterygopalatine fossa, allowing vessels and nerves to pass.
I find it difficult to answer

The sphenopalatine foramen connects the nasal cavity and pterygopalatine fossa, allowing vessels and nerves to pass.

20. Where do the anterior ethmoidal air cells open?

Into the superior nasal meatus.

The anterior and middle ethmoidal air cells drain into the middle nasal meatus.
Into the inferior nasal meatus.

The anterior and middle ethmoidal air cells drain into the middle nasal meatus.
Into the middle nasal meatus.

The anterior and middle ethmoidal air cells drain into the middle nasal meatus.
Into the sphenoid sinus

The anterior and middle ethmoidal air cells drain into the middle nasal meatus.
I find it difficult to answer

The anterior and middle ethmoidal air cells drain into the middle nasal meatus.