What is the primary purpose of the ciliated mucous membrane in the nose?
To facilitate the movement of air through the nares
To filter coarse particles from inhaled air
To filter out odors
To warm the inhaled air
The Correct Answer is B
A. To facilitate the movement of air through the nares: While the ciliated mucous membrane does help in the overall functioning of the nasal passages, its primary role is not to facilitate air movement but to filter and trap particles.
B. To filter coarse particles from inhaled air: The primary purpose of the ciliated mucous membrane in the nose is to trap and filter out coarse particles, such as dust, pollen, and microbes, from inhaled air. The cilia beat in a coordinated manner to move mucus and trapped particles towards the throat, where they can be swallowed or expelled, helping to keep the airways clear and protect the respiratory system.
C. To filter out odors: While the nasal cavity does play a role in detecting odors through the olfactory receptors located in the upper part of the nasal cavity, the ciliated mucous membrane itself is not primarily responsible for filtering odors.
D. To warm the inhaled air: The nasal passages do help warm inhaled air as it passes through, but this is more a function of the rich blood supply and the large surface area of the nasal cavity rather than the role of the ciliated mucous membrane specifically. The primary action of the ciliated mucous membrane is focused on filtering particles from the air.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Insert a nasal tube into each nostril to ensure no blockage is present: Inserting a nasal tube is an invasive procedure that is not necessary for assessing nostril patency. This method can cause discomfort and does not provide a simple or effective assessment of airflow through the nostrils.
B. Refer patient to a nasal specialist to ensure there is not any blockage in the nasal cavity: Referral to a specialist is unnecessary for a basic assessment of nostril patency. The nurse can perform a simple, non-invasive test before considering a referral for further evaluation.
C. Press each nostril shut and have the patient sniff to ensure air passage through each nostril: This method effectively assesses nostril patency. By occluding one nostril at a time, the nurse can evaluate airflow and determine if there is any blockage or obstruction in the nasal passages. It is a quick and straightforward assessment technique.
D. Have the patient blow their nose into a tissue forcefully: Asking the patient to blow their nose can provide information about mucus presence or drainage but does not specifically assess nostril patency. This action may also cause discomfort and is not the best initial assessment for airflow through the nostrils.
Correct Answer is B
Explanation
A. Maxillary sinuses reach full size after puberty: While maxillary sinuses continue to grow throughout childhood, they are present at birth and reach adult size during late adolescence. The frontal and sphenoid sinuses, rather than the maxillary, experience more significant postnatal development.
B. Maxillary and ethmoid sinuses are the only sinuses present at birth: At birth, only the maxillary and ethmoid sinuses are developed. The frontal and sphenoid sinuses begin to develop later in infancy and childhood, with full maturation occurring in adolescence.
C. Frontal sinuses are fairly well developed at birth: Frontal sinuses do not develop until around 7 to 8 years of age and continue growing into adolescence. They are absent or rudimentary in newborns.
D. Sphenoid sinuses are full size at birth: The sphenoid sinuses begin developing around 2 to 3 years of age and continue growing into late childhood and adolescence. They are not present at birth.
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