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 B
Explanation
A. MMSE: The Mini-Mental State Examination (MMSE) is primarily used to assess cognitive function and screen for dementia. While it can provide some information about a patient's cognitive status, it is not specifically designed to evaluate mood disorders or depressive symptoms.
B. PHQ9: The Patient Health Questionnaire-9 (PHQ-9) is a widely used screening tool specifically designed to assess the severity of depression. It consists of nine questions related to the patient's mood, interest in activities, sleep patterns, and other symptoms of depression, making it an appropriate choice for further evaluation in this case.
C. GAD7: The Generalized Anxiety Disorder 7-item scale (GAD-7) is used to assess the severity of generalized anxiety disorder. While anxiety and depression can be related, the GAD-7 is not the best tool for evaluating the depressed mood reported by the patient.
D. Delirium Screening Tool: This tool is used to assess for delirium, which is an acute confusion state typically seen in hospitalized patients or those with significant medical issues. It is not applicable in evaluating depressive symptoms in a young adult.
Correct Answer is A
Explanation
A. The purpose of the tubes is to decrease the pressure and allow for drainage: Tympanostomy tubes are placed in the tympanic membrane to facilitate drainage of middle ear fluid and equalize pressure. They help prevent recurrent otitis media and improve hearing in children prone to persistent effusions. The tubes create a temporary opening that allows air to enter the middle ear, reducing the risk of fluid accumulation and infection.
B. The tubes are permanently inserted during a surgical procedure: Tympanostomy tubes are not permanent; they usually fall out on their own within 6 to 12 months as the tympanic membrane heals. In some cases, if they do not extrude naturally, they may need to be removed by an ear, nose, and throat (ENT) specialist. Permanent tubes are rarely used and only in cases of severe chronic ear problems.
C. The tubes are placed in the inner ear: Tympanostomy tubes are inserted into the tympanic membrane (eardrum), which separates the outer ear from the middle ear. They do not enter the inner ear, which contains the cochlea and vestibular system. Placement in the inner ear would not be anatomically correct and could lead to serious complications.
D. The tubes are used in children with sensorineural loss: Tympanostomy tubes are not a treatment for sensorineural hearing loss, which results from damage to the inner ear or auditory nerve. They are used for conductive hearing issues caused by middle ear effusion, recurrent ear infections, or Eustachian tube dysfunction. Sensorineural hearing loss is typically managed with hearing aids or cochlear implants, not tympanostomy tubes.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.