18 Questions
What is the shape of the maxillary sinus?
Pyramidal
Which nerve innervates the frontal sinus?
Ophthalmic nerve
Where do the ethmoidal sinuses drain into?
Middle meatus
What is the term for the openings through which the nasal cavity connects posteriorly to the nasopharynx?
Choanae
Which artery is the largest vessel supplying the nasal cavity?
Sphenopalatine artery
Which of the following bones contributes to the bony framework of the external nose?
Frontal bone
What structure separates the ethmoidal sinuses from the orbit?
Bone plate
What type of cartilage makes up the alar cartilages in the external nose?
Hyaline cartilage
Which sinus is located under the forehead?
Frontal sinus
Which structure divides the nasal cavity into right and left halves?
Septal cartilage
What forms the roof of the nasal cavity?
Ethmoid bone
Which cartilage surrounds the anterior portion of the nasal cavity, just inside the nostrils?
Alar cartilages
What separates the nasal cavity into right and left halves?
Septal cartilage
Which bone forms the upper part of the nasal septum?
Perpendicular plate of ethmoid bone
Which structure elevates to form the dome-shaped Ethmoidal bulla?
Superior concha
What structure forms a channel that continues as the frontonasal duct?
Hiatus semilunaris
Which part of the lateral wall receives the opening of the sphenoidal air sinus?
Spheno-ethmoidal recess
Where do the nasolacrimal duct and most paranasal sinuses open onto in the nasal cavity?
Middle meatus
Learn about the internal and external structures of the nose, including the nasal cavity and the bony as well as cartilaginous frameworks of the external nose.
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