59 Questions
What is the main function of the nasal cavity?
To warm and humidify inspired air
What type of epithelium lines the nasal cavity?
Pseudostratified epithelium
How many pairs of bones form the root of the nose?
3 pairs
What is the source of the blood supply to the nose?
Both the external and internal carotid arteries
What is the function of the conchae in the nose?
Not mentioned in the text
What is the relationship between the paranasal sinuses and the nasal cavity?
They drain into the nasal cavity through its lateral wall
What is the primary function of the paranasal sinuses in regards to the air we breathe?
To warm and filter the air
What is the primary source of blood supply to the maxillary sinuses?
Maxillary artery
How do the paranasal sinuses primarily form during development?
Through intrinsic growth and invasion of bone
What type of epithelium lines the paranasal sinuses?
Pseudostratified columnar epithelium
Which nerve is responsible for the innervation of the maxillary sinuses?
Maxillary nerve
What is the term for the openings that connect the paranasal sinuses to the nasal cavity?
Ostia
Which nerve divisions provide the general sensory supply to the nose?
Ophthalmic and maxillary
What is the function of the olfactory region in the nasal cavity?
To detect odor molecules
What is the term for the three large elevations that protrude from the lateral wall of the nasal cavity?
Conchae
What drains into the lateral walls of the nasal cavity?
Paranasal sinuses and nasolacrimal duct
What is the function of the vestibule in the nasal cavity?
To house hair follicles and skin
What connects the nasal cavity to the pterygopalatine fossa?
Sphenopalatine foramen
Which facial bone forms the posterior aspect of the nasal septum?
Vomer
What is the most common cause of a nasal fracture?
Blunt trauma
Which paranasal sinus provides a surgical approach to the pituitary gland?
Sphenoid sinus
What is a common symptom of a nasal bone injury?
Epistaxis
What is the location of the pituitary adenoma in the given clinical scenario?
Pituitary gland
What is the epithelial lining of the respiratory region of the nasal cavity?
Pseudostratified ciliated
Which structure marks the opening of the frontal, maxillary and anterior ethmoidal sinuses in the nasal cavity?
Semilunar hiatus
Which cranial bone does the cribriform plate belong to?
Ethmoid
Which of the following is an unpaired bone of the nasal septum?
Ethmoid
Which of the following is not an ethmoid sinus?
Medial
Which is the largest of the paranasal sinuses?
Maxillary
What is the primary function of the nasal cavity?
To warm and humidify inspired air
How many pairs of bones form the root of the nose?
Three pairs
What are the three major arteries that supply blood to the nose?
Ophthalmic, maxillary, and facial
What type of epithelium lines the nasal cavity?
Pseudostratified
What is the relationship between the paranasal sinuses and the nasal cavity?
The paranasal sinuses drain into the lateral walls of the nasal cavity
What is the primary function of the conchae in the nose?
To warm and humidify inspired air
What is the primary mechanism of paranasal sinus formation during development?
Intrinsic growth and invasion of bone
What is the common feature of the paranasal sinuses' structure?
Air-filled cavities enclosed in skull bones and covered by mucus and cilia
Which blood vessel supplies the frontal sinus?
Ophthalmic artery
What is the nerve responsible for the innervation of the maxillary sinuses?
Maxillary nerve
What is the connection between the paranasal sinuses and the nasal cavity?
Ostia
What is a characteristic of the respiratory epithelium lining the paranasal sinuses?
Pseudostratified columnar
What is the function of the sphenopalatine foramen in the nasal cavity?
Connects the nasal cavity to the pterygopalatine fossa
What is the epithelial lining of the olfactory region in the nasal cavity?
Olfactory epithelium
What is the boundary that separates the left and right nasal cavities?
Central nasal septum
What is the location of the hair follicles in the nasal cavity?
Vestibule
What is the function of the conchae in the nasal cavity?
To warm and humidify the air we breathe
What is the general sensory supply to the nose provided by?
Branches of the ophthalmic and maxillary divisions of the trigeminal nerve
What is the primary reason why the maxillary sinus is most likely to be infected?
Due to its proximity to the nasal cavity
Which bones make up most of the nasal septum?
Vomer and septal cartilage
Why do you get toothache from a sinus infection?
Due to the proximity of the maxillary sinus to the roots of the teeth
Which of the following is NOT a function of the turbinates?
Produce mucus
Which lymph nodes will be enlarged if the maxillary sinus is infected?
Pterygopalatine nodes
What is the function of the ostia in the maxillary sinus?
To connect the maxillary sinus to the nasal cavity
Which of the following nerves passes through the maxillary sinus on its way to the upper teeth?
Superior alveolar nerve
What is the term for the inflammation of the mucosa in the paranasal sinuses?
Sinusitis
How can an upper respiratory tract infection spread to the sinuses?
Through the nasal cavity
What is the path by which infection can spread between the middle ear and upper respiratory tract?
Auditory tube
What is the reason for 'tooth pain' in maxillary sinus infections?
Direct pressure of the maxillary sinus on the alveolar nerves
What is the condition where more than one sinus is affected?
Pansinusitis
Test your knowledge on the anatomy of the nose and paranasal sinuses, including their structure, function, and relationships. Learn about the nasal cavity, septum, conchae, and paranasal sinuses. Identify their positions, boundaries, and drainage sites.
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