Nose & Paranasal Sinuses Anatomy
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Questions and Answers

What is the main function of the nasal cavity?

  • To remove and trap pathogens and particulates
  • To drain and clear sinuses and lacrimal ducts
  • To warm and humidify inspired air (correct)
  • To produce mucus

    • What type of epithelium lines the nasal cavity?

  • Columnar epithelium
  • Pseudostratified epithelium (correct)
  • Stratified squamous epithelium
  • Simple squamous epithelium

    • How many pairs of bones form the root of the nose?

  • 4 pairs
  • 5 pairs
  • 2 pairs
  • 3 pairs (correct)

    • What is the source of the blood supply to the nose?

    <p>Both the external and internal carotid arteries</p> Signup and view all the answers

    What is the function of the conchae in the nose?

    <p>Not mentioned in the text</p> Signup and view all the answers

    What is the relationship between the paranasal sinuses and the nasal cavity?

    <p>They drain into the nasal cavity through its lateral wall</p> Signup and view all the answers

    What is the primary function of the paranasal sinuses in regards to the air we breathe?

    <p>To warm and filter the air</p> Signup and view all the answers

    What is the primary source of blood supply to the maxillary sinuses?

    <p>Maxillary artery</p> Signup and view all the answers

    How do the paranasal sinuses primarily form during development?

    <p>Through intrinsic growth and invasion of bone</p> Signup and view all the answers

    What type of epithelium lines the paranasal sinuses?

    <p>Pseudostratified columnar epithelium</p> Signup and view all the answers

    Which nerve is responsible for the innervation of the maxillary sinuses?

    <p>Maxillary nerve</p> Signup and view all the answers

    What is the term for the openings that connect the paranasal sinuses to the nasal cavity?

    <p>Ostia</p> Signup and view all the answers

    Which nerve divisions provide the general sensory supply to the nose?

    <p>Ophthalmic and maxillary</p> Signup and view all the answers

    What is the function of the olfactory region in the nasal cavity?

    <p>To detect odor molecules</p> Signup and view all the answers

    What is the term for the three large elevations that protrude from the lateral wall of the nasal cavity?

    <p>Conchae</p> Signup and view all the answers

    What drains into the lateral walls of the nasal cavity?

    <p>Paranasal sinuses and nasolacrimal duct</p> Signup and view all the answers

    What is the function of the vestibule in the nasal cavity?

    <p>To house hair follicles and skin</p> Signup and view all the answers

    What connects the nasal cavity to the pterygopalatine fossa?

    <p>Sphenopalatine foramen</p> Signup and view all the answers

    Which facial bone forms the posterior aspect of the nasal septum?

    <p>Vomer</p> Signup and view all the answers

    What is the most common cause of a nasal fracture?

    <p>Blunt trauma</p> Signup and view all the answers

    Which paranasal sinus provides a surgical approach to the pituitary gland?

    <p>Sphenoid sinus</p> Signup and view all the answers

    What is a common symptom of a nasal bone injury?

    <p>Epistaxis</p> Signup and view all the answers

    What is the location of the pituitary adenoma in the given clinical scenario?

    <p>Pituitary gland</p> Signup and view all the answers

    What is the epithelial lining of the respiratory region of the nasal cavity?

    <p>Pseudostratified ciliated</p> Signup and view all the answers

    Which structure marks the opening of the frontal, maxillary and anterior ethmoidal sinuses in the nasal cavity?

    <p>Semilunar hiatus</p> Signup and view all the answers

    Which cranial bone does the cribriform plate belong to?

    <p>Ethmoid</p> Signup and view all the answers

    Which of the following is an unpaired bone of the nasal septum?

    <p>Ethmoid</p> Signup and view all the answers

    Which of the following is not an ethmoid sinus?

    <p>Medial</p> Signup and view all the answers

    Which is the largest of the paranasal sinuses?

    <p>Maxillary</p> Signup and view all the answers

    What is the primary function of the nasal cavity?

    <p>To warm and humidify inspired air</p> Signup and view all the answers

    How many pairs of bones form the root of the nose?

    <p>Three pairs</p> Signup and view all the answers

    What are the three major arteries that supply blood to the nose?

    <p>Ophthalmic, maxillary, and facial</p> Signup and view all the answers

    What type of epithelium lines the nasal cavity?

    <p>Pseudostratified</p> Signup and view all the answers

    What is the relationship between the paranasal sinuses and the nasal cavity?

    <p>The paranasal sinuses drain into the lateral walls of the nasal cavity</p> Signup and view all the answers

    What is the primary function of the conchae in the nose?

    <p>To warm and humidify inspired air</p> Signup and view all the answers

    What is the primary mechanism of paranasal sinus formation during development?

    <p>Intrinsic growth and invasion of bone</p> Signup and view all the answers

    What is the common feature of the paranasal sinuses' structure?

    <p>Air-filled cavities enclosed in skull bones and covered by mucus and cilia</p> Signup and view all the answers

    Which blood vessel supplies the frontal sinus?

    <p>Ophthalmic artery</p> Signup and view all the answers

    What is the nerve responsible for the innervation of the maxillary sinuses?

    <p>Maxillary nerve</p> Signup and view all the answers

    What is the connection between the paranasal sinuses and the nasal cavity?

    <p>Ostia</p> Signup and view all the answers

    What is a characteristic of the respiratory epithelium lining the paranasal sinuses?

    <p>Pseudostratified columnar</p> Signup and view all the answers

    What is the function of the sphenopalatine foramen in the nasal cavity?

    <p>Connects the nasal cavity to the pterygopalatine fossa</p> Signup and view all the answers

    What is the epithelial lining of the olfactory region in the nasal cavity?

    <p>Olfactory epithelium</p> Signup and view all the answers

    What is the boundary that separates the left and right nasal cavities?

    <p>Central nasal septum</p> Signup and view all the answers

    What is the location of the hair follicles in the nasal cavity?

    <p>Vestibule</p> Signup and view all the answers

    What is the function of the conchae in the nasal cavity?

    <p>To warm and humidify the air we breathe</p> Signup and view all the answers

    What is the general sensory supply to the nose provided by?

    <p>Branches of the ophthalmic and maxillary divisions of the trigeminal nerve</p> Signup and view all the answers

    What is the primary reason why the maxillary sinus is most likely to be infected?

    <p>Due to its proximity to the nasal cavity</p> Signup and view all the answers

    Which bones make up most of the nasal septum?

    <p>Vomer and septal cartilage</p> Signup and view all the answers

    Why do you get toothache from a sinus infection?

    <p>Due to the proximity of the maxillary sinus to the roots of the teeth</p> Signup and view all the answers

    Which of the following is NOT a function of the turbinates?

    <p>Produce mucus</p> Signup and view all the answers

    Which lymph nodes will be enlarged if the maxillary sinus is infected?

    <p>Pterygopalatine nodes</p> Signup and view all the answers

    What is the function of the ostia in the maxillary sinus?

    <p>To connect the maxillary sinus to the nasal cavity</p> Signup and view all the answers

    Which of the following nerves passes through the maxillary sinus on its way to the upper teeth?

    <p>Superior alveolar nerve</p> Signup and view all the answers

    What is the term for the inflammation of the mucosa in the paranasal sinuses?

    <p>Sinusitis</p> Signup and view all the answers

    How can an upper respiratory tract infection spread to the sinuses?

    <p>Through the nasal cavity</p> Signup and view all the answers

    What is the path by which infection can spread between the middle ear and upper respiratory tract?

    <p>Auditory tube</p> Signup and view all the answers

    What is the reason for 'tooth pain' in maxillary sinus infections?

    <p>Direct pressure of the maxillary sinus on the alveolar nerves</p> Signup and view all the answers

    What is the condition where more than one sinus is affected?

    <p>Pansinusitis</p> Signup and view all the answers

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