MEDICINE MCQ
RESPIRATORY MEDICINE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In the front lobe of the brain
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In the skull surrounding the nasal cavity
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Inside the nares
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Under the cheek bones in the subcutaneous tissue
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Detailed explanation-1: -The word “sinus” is most commonly understood to be the paranasal sinuses that are located near the nose and connect to the nasal cavity. There are four paranasal sinuses, each corresponding with the respective bone from which it takes its name: maxillary, ethmoid, sphenoid, and frontal.
Detailed explanation-2: -Sphenoid sinuses – The sphenoid sinuses sit very far back in the head, near the optic nerves and pituitary gland, behind the eyes. Ethmoid sinuses – A collection of six to 12 tiny air sacs, the ethmoid sinuses behind the nose separated into front, middle and rear groups.
Detailed explanation-3: -Structure and Function There are 4 pairs of the paranasal sinuses: Maxillary sinuses (the biggest) Frontal sinuses. Ethmoidal air cells.