LE4 Flashcards
- The Rhinion is located at:
A. The junction of the nasal bones and frontal bone
B. The midline of the inferior border of the nasal bones where it meets the upper lateral cartilage
C. The suture line between the nasal bones and ethmoid bone
D. The upper part of the nasal septum
B. The midline of the inferior border of the nasal bones where it meets the upper lateral cartilage
- What does the mesodermal frontonasal process give rise to?
A. Inferior nasal conchae and nasal bones
B. Nasal septum and primitive palate (premaxilla)
C. Maxillary sinus and uncinate process
D. Superior nasal meatus and cribriform plate
B. Nasal septum and primitive palate (premaxilla)
- The nasal septum serves which function?
A. Divides the nose into right and left nasal cavities
B. Supports the lateral nasal walls
C. Provides drainage pathways for paranasal sinuses
D. Protects the nasolacrimal duct
A. Divides the nose into right and left nasal cavities
- The _____ includes maxillary ostium/infundibulum, ethmoid infundibulum, frontoethmoidal complex, uncinate process, hiatus semilunaris, ethmoidal bulla, and middle meatus.
A. Middle meatus complex
B. Ostiomeatal unit
C. Nasolacrimal pathway
D. Frontoethmoidal drainage unit
B. Ostiomeatal unit
- The inferior meatus contains the opening of the:
A. Maxillary sinus
B. Nasolacrimal duct
C. Sphenoid sinus
D. Ethmoidal air cells
B. Nasolacrimal duct
- Which of the following describes the paranasal sinus?
A. Medial to the ethmoids and separates them from the orbit
B. Air-filled spaces lined by respiratory epithelium on either side of the head
C. Located anterior to and above the ethmoid sinuses
D. Posterosuperior to the sphenoid
B. Air-filled spaces lined by respiratory epithelium on either side of the head
- The lamina papyracea is located:
A. Medial to the ethmoids and separates them from the orbit
B. Air-filled spaces lined by respiratory epithelium on either side of the head
C. Located anterior to and above the ethmoid sinuses
D. Posterosuperior to the sphenoid
A. Medial to the ethmoids and separates them from the orbit
- Which of the following is the largest of the paranasal sinuses?
A. Medial to the ethmoids and separates them from the orbit
B. Air-filled spaces lined by respiratory epithelium on either side of the head
C. Located anterior to and above the ethmoid sinuses
D. Posterosuperior to the sphenoid
E. Largest of the paranasal sinuses
E. Largest of the paranasal sinuses
- The pituitary gland is located:
A. Medial to the ethmoids and separates them from the orbit
B. Air-filled spaces lined by respiratory epithelium on either side of the head
C. Located anterior to and above the ethmoid sinuses
D. Posterosuperior to the sphenoid
D. Posterosuperior to the sphenoid
- The frontal sinus is located:
A. Medial to the ethmoids and separates them from the orbit
B. Air-filled spaces lined by respiratory epithelium on either side of the head
C. Located anterior to and above the ethmoid sinuses
D. Posterosuperior to the sphenoid
C. Located anterior to and above the ethmoid sinuses
- The cribriform plate is the structure:
A. Physically cleanses inspired air
B. Through which olfactory neurons pass into the nasal cavity
C. Absence of sense of smell
D. Unilateral foul-smelling rhinorrhea
B. Through which olfactory neurons pass into the nasal cavity
- Anosmia is defined as:
A. Physically cleanses inspired air
B. Through which olfactory neurons pass into the nasal cavity
C. Absence of sense of smell
D. Unilateral foul-smelling rhinorrhea
C. Absence of sense of smell
- The mucociliary apparatus serves which function?
A. Physically cleanses inspired air
B. Through which olfactory neurons pass into the nasal cavity
C. Absence of sense of smell
D. Unilateral foul-smelling rhinorrhea
A. Physically cleanses inspired air
- Rhinovirus is known as the pathogen that:
A. Physically cleanses inspired air
B. Through which olfactory neurons pass into the nasal cavity
C. Absence of sense of smell
D. Unilateral foul-smelling rhinorrhea
E. Causes 50% of common colds
E. Causes 50% of common colds
- A nasal foreign body commonly presents with:
A. Physically cleanses inspired air
B. Through which olfactory neurons pass into the nasal cavity
C. Absence of sense of smell
D. Unilateral foul-smelling rhinorrhea
D. Unilateral foul-smelling rhinorrhea
- At birth, which two sinuses are large enough to acquire sinusitis?
A. Maxillary and ethmoid sinuses
B. Sphenoid and ethmoid sinuses
C. Sphenoid and maxillary sinuses
D. Frontal and maxillary sinuses
E. Frontal and ethmoid sinuses
A. Maxillary and ethmoid sinuses
- The bony framework or vault of the nose is formed by:
A. Paired nasal bones
B. Frontal process of maxilla
C. Nasal process of frontal bone
D. All of the above
D. All of the above
- The cartilaginous vault of the nose consists of:
A. Upper lateral cartilage
B. Lower cartilage
C. Nasal septum
D. All of the above
E. A and B
D. All of the above
- The roof of the nasal cavity is formed by:
A. Cribriform plate
B. Undersurface of the sphenoid bone
C. Nasal area of the frontal bone
D. Nasal bones
E. All of the above
E. All of the above
- Scroll-like structures in the lateral wall of the nose that form boundaries for nasal meatal passages and are invested by respiratory epithelium are called:
A. Nasal septum
B. Posterior nares
C. Turbinates
D. Paranasal sinuses
E. Columellae
C. Turbinates
- The pathogenesis of ___ is believed to involve neurovascular autonomic disturbances in regulating the tonus of nasal mucosal vessels. Symptoms include nasal obstruction, watery rhinorrhea, and sneezing.
A. Allergic rhinitis
B. Vasomotor rhinitis
C. Nasal polyps
D. Rhinitis medicamentosa
E. Atrophic rhinitis
B. Vasomotor rhinitis
- The respiratory function of the nose includes:
A. Humidification
B. Temperature control
C. Cleansing and filtration
D. Antibacterial/antiviral activity
E. AOTA
E. AOTA (All of the Above)
- Functions of the paranasal sinuses include:
A. Lightening of the skull weight
B. Providing bumper-like protection to the face in trauma
C. Voice resonation
D. Contributing to olfaction
E. AOTA
E. AOTA (All of the Above)
- The epithelial lining of the nose is composed of:
A. Predominantly pseudostratified columnar
B. Stratified squamous in vestibule and nares
C. Nonciliated pseudostratified columnar epithelium containing serous glands and bipolar cells in the roof
D. All of the above
D. All of the above
- Damage to the olfactory epithelium may cause abnormal perception of smell/hyposmia due to:
A. Drugs
B. Viral infections
C. Radiotherapy
D. All of the above
D. All of the above
- Herniations of intracranial contents through bony defects are called:
A. Cephalocele
B. Frontobasal dysraphia
C. Dorsal nasal fistula
D. Nasal dermoid
E. Septal subluxation
A. Cephalocele
- All of the following are etiologic agents of acute sinusitis EXCEPT:
A. Rhinovirus
B. Influenza virus
C. Rotavirus
D. Coronavirus
C. Rotavirus
- Which of the following is TRUE regarding nasal polyposis?
A. Chronic inflammation
B. Examination shows mast cells, eosinophils, and increased histamine
C. Hypersensitivity to acetylsalicylic acid
D. AOTA
D. AOTA (All of the Above)
- The most common site of complications of sinusitis, particularly due to proximity of the ethmoid sinus and thin, dehiscent lamina papyracea, is:
A. Brain
B. Orbital region
C. Nasal cavity
D. Frontal sinus
B. Orbital region
- Complications of allergic rhinitis include:
A. Obstructive sleep apnea
B. Rhinosinusitis and nasal polyps
C. Otitis media
D. AOTA
E. A & B
D. AOTA (All of the Above)
- Symptoms of allergic rhinitis include:
A. Watery nasal discharge
B. Mucopurulent nasal discharge
C. Nasal stuffiness
D. Headache
E. A, C, D only
E. A, C, D only
- Symptoms of allergic rhinosinusitis include:
A. Watery nasal discharge
B. Mucopurulent nasal discharge
C. Nasal stuffiness
D. Headache
E. A, C, D only
E. A, C, D only
- Pre-exposed antibody IgE binds to the surface of:
A. Mast cells
B. Basophils
C. Eosinophils
D. None of the above
E. All of the above
E. All of the above
- Overuse of alpha-adrenergic agonists as decongestants often causes a rebound effect. This condition is called:
A. Rhinitis medicamentosa
B. Vasomotor rhinitis
C. Atrophic rhinitis
D. Allergic rhinitis
A. Rhinitis medicamentosa
- The recommended drug treatment for moderate to severe allergic rhinitis is:
A. Antihistamine (H1 blocker)
B. Topical corticosteroids
C. Antihistamine (H1 blocker) + topical corticosteroids
D. Oral decongestants
C. Antihistamine (H1 blocker) + topical corticosteroids
- Which of the following causes vasoconstriction and mitigates nasal fullness?
A. Antihistamine
B. α-agonist decongestant
C. Topical anticholinergic
D. Cromones
B. α-agonist decongestant
- Which of the following stabilizes mast cells?
A. Cromones
B. Antihistamines
C. β2 agonist
D. Nonsteroidal anti-inflammatory drugs
A. Cromones
- Which has a local anti-inflammatory effect?
A. Cromones
B. Antihistamines
C. Topical steroids
D. Nonsteroidal anti-inflammatory drugs
C. Topical steroids
- Which decreases symptoms of sneezing, itching, and rhinorrhea in allergic rhinitis?
A. Cromones
B. Antihistamines
C. β2 agonist
D. Nonsteroidal anti-inflammatory drugs
B. Antihistamines
- The most frequent cause of acute rhinosinusitis is:
A. Common cold
B. Allergic rhinitis
C. Septal deviation
D. Vasomotor rhinitis
A. Common cold
- Chronic nonallergic, noninfectious idiopathic rhinitis is treated by:
A. Ipratropium bromide
B. Topical steroids
C. Antihistamine decongestant
D. AOTA
D. AOTA (All of the Above)
- Symptoms of watery nasal discharge, anosmia, and headache with meningitis as a complication suggest:
A. Allergic rhinitis
B. Vasomotor rhinitis
C. Cerebral rhinorrhea
D. Sinusitis
C. Cerebral rhinorrhea
- The principle of Flexible Endoscopic Sinus Surgery (FESS) is to:
A. Remove nasal polyps
B. Enlarge tight passages in the middle meatus and sinus ostium to restore ventilation and mucociliary flow
C. Drain fluid from the frontal sinus
D. Repair septal deviation
B. Enlarge tight passages in the middle meatus and sinus ostium to restore ventilation and mucociliary flow
- The most common cause of posterior epistaxis is:
A. Trauma
B. Hypertension
C. Nasal tumors
D. Allergic rhinitis
B. Hypertension
- Maxillary sinusitis commonly originates from infection of which set of anterior teeth?
A. Incisors
B. Canines
C. 1st and 2nd molars
D. Premolars
C. 1st and 2nd molars
- Presence of rhinitis and eosinophilia on smear but no allergic symptoms is referred to as:
A. Allergic rhinitis
B. Eosinophilic non-allergic rhinitis
C. Vasomotor rhinitis
D. Atrophic rhinitis
B. Eosinophilic non-allergic rhinitis
- Crusty mucosa, watery nasal discharge, and foul smell are characteristic of:
A. Atrophic rhinitis
B. Vasomotor rhinitis
C. Hormonal rhinitis
D. Rhinitis medicamentosa
A. Atrophic rhinitis
- Rhinitis associated with hyperthyroidism is termed:
A. Vasomotor rhinitis
B. Metabolic rhinitis
C. Hormonal rhinitis
D. Eosinophilic non-allergic rhinitis
B. Metabolic rhinitis
- Rebound nasal congestion upon withdrawal of topical decongestants is called:
A. Rhinitis medicamentosa
B. Vasomotor rhinitis
C. Atrophic rhinitis
D. Hormonal rhinitis
A. Rhinitis medicamentosa
- A frequent side effect of pregnancy that causes nasal congestion is called:
A. Eosinophilic rhinitis
B. Hormonal rhinitis
C. Vasomotor rhinitis
D. Metabolic rhinitis
B. Hormonal rhinitis
- Choanal atresia commonly affects both nasal cavities.
A. True
B. False
B. False
- Pre-exposed antibody IgE binds specifically to which cells?
A. Basophils
B. Mast cells
C. Eosinophils
D. AOTA (All of the Above)
D. AOTA (All of the Above)
- A feature of the immune system that describes an amplified response to a previously encountered antigen is:
A. Tolerance
B. Memory
C. Hypersensitivity
D. Specificity
B. Memory
- A molecule that is specifically recognized by T and B cells is called:
A. Antibody
B. Antigen
C. Histamine
D. Cytokine
B. Antigen
- MALT (Mucosa-Associated Lymphoid Tissue) includes all the following EXCEPT:
A. Tonsils
B. Peyer’s patches
C. Adrenals
D. Appendix
C. Adrenals
- Which cells are responsible for producing antibodies?
A. T cells
B. B cells
C. Null cells
D. Macrophages
B. B cells
- Amplifiers and modifiers of the immune system include:
A. Interferon
B. Interleukins
C. Antigen-presenting cells
D. All of the above
D. All of the above
- Null cells are characterized by:
A. Producing both B and T cells
B. Producing neither B nor T cells
C. Regulating lymphocyte proliferation
D. Recognizing antigens
B. Producing neither B nor T cells
- The function of suppressor T cells is to:
A. Activate immune responses
B. Regulate proliferation of lymphocytes
C. Destroy antigens directly
D. Present antigens to B cells
B. Regulate proliferation of lymphocytes
- Apoptosis refers to:
A. Cellular repair process
B. Programmed cell death
C. Rapid cell proliferation
D. Phagocytosis of dead cells
B. Programmed cell death
- Hydroma is associated with:
A. Producing monoclonal antibodies
B. Regulating cell apoptosis
C. Containing T lymphocytes
D. Antigen presentation
A. Producing monoclonal antibodies
- The term ‘Cluster of Differentiation’ (CD) refers to:
A. Immune system regulation
B. Nomenclature system for monoclonal antibodies that recognize specific cell surface antigens
C. Pathway of antibody production
D. Identification of lymphocyte subclasses
B. Nomenclature system for monoclonal antibodies that recognize specific cell surface antigens
- Antigen-presenting cells include all the following EXCEPT:
A. Macrophages
B. Dendritic cells
C. B lymphocytes
D. Mast cells
D. Mast cells
- Which T lymphocytes are involved in tissue rejection?
A. Helper T cells
B. Suppressor T cells
C. Cytotoxic T cells
D. Memory T cells
C. Cytotoxic T cells
- IgG is described as:
A. The antibody involved in allergic reactions
B. The most abundant and major antibody in circulation
C. Abundant in secretions
D. Contained in mast cells
B. The most abundant and major antibody in circulation
- IgE is associated with:
A. Secretions in mucosal surfaces
B. Containment in mast cells, basophils, and allergic reactions
C. Phagocytosis of antigens
D. Neutralizing toxins
B. Containment in mast cells, basophils, and allergic reactions
- Phagocytosis is the process by which:
A. Cells engulf and digest foreign particles
B. B cells produce antibodies
C. Cytokines are released to regulate immunity
D. T cells destroy infected cells
A. Cells engulf and digest foreign particles
- IgA is most abundant in:
A. Circulating blood
B. Secretions such as saliva, tears, and mucus
C. Mast cells and basophils
D. Lymph nodes
B. Secretions such as saliva, tears, and mucus
- Apoptosis can be defined as:
A. Programmed cell death
B. Antibody production
C. Cell proliferation
D. Phagocytosis of foreign bodies
A. Programmed cell death
- Acute otitis media and bacterial sinusitis share the same most frequent pathogens. Which are they?
A. H. influenzae
B. Strep. pneumoniae
C. E. coli
D. AOTA
B. Strep. pneumoniae
- The main causes of antibiotic resistance include:
A. Indiscriminate use of antibiotics, especially for viral infections
B. Use of antibiotics in animal feeds
C. Incomplete treatment/inability to treat bacterial infections
D. All of the above
D. All of the above
- Factors to consider when giving antibiotics to patients undergoing head and neck surgery include:
A. Efficacy against microorganisms likely to cause infectious complications in particular anatomic sites
B. Safety profile
C. Cost
D. All of the above
D. All of the above
- Which of the following are effective in treating candidiasis?
A. Gentamycin
B. Nystatin
C. Itraconazole
D. All of the above
E. B & C
D. All of the above
- Which drugs are used to treat chickenpox, herpes zoster, and severe recurrent herpes simplex?
A. Acyclovir
B. Valacyclovir
C. Amantadine
D. All of the above
E. A & B
D. All of the above
- Nystatin is effective for the treatment of:
A. Oral candidiasis
B. Vaginal candidiasis
C. Topical fungal infections
D. AOTA (All of the above)
D. AOTA (All of the above)
- Tonsillitis is commonly caused by:
A. Mixed anaerobic and aerobic bacteria
B. S. pneumoniae
C. H. influenzae
D. AOTA
D. AOTA (All of the Above)
- Bacterial sore throat is characterized by:
A. Fever
B. Severe erythema and exudates
C. Lymphadenopathy
D. AOTA
E. A and B only
D. AOTA (All of the Above)
- Which drug is active against protozoal and anaerobic bacterial infections?
A. Metronidazole
B. Fluconazole
C. Cotrimoxazole
D. Amphotericin
E. Polymyxin B
A. Metronidazole
- This antibiotic group inhibits growth by disrupting metabolism, is mostly unaffected by β-lactamases, and can cause photosensitivity, Stevens-Johnson syndrome, and hemolytic anemia:
A. Chloramphenicol
B. Sulfonamides
C. Quinolones
D. Erythromycin
E. Metronidazole
B. Sulfonamides
- Which antibiotics are used to treat Pseudomonas infections in the head and neck?
A. Fluoroquinolones
B. Amoxicillin
C. Imipenem
D. Sultamicillin
E. Ceftriaxone
A. Fluoroquinolones
- Which of the following are considered ceruminolytics?
A. Glycerin
B. Mineral oil
C. Coconut oil
D. AOTA (All of the Above)
E. A & B only
D. AOTA (All of the Above)
- Rhinitis medicamentosa is characterized by:
A. Rebound congestion
B. Prolonged use of nasal decongestants
C. A form of vascular atony
D. AOTA (All of the Above)
E. A & B only
D. AOTA (All of the Above)
- The drug of choice for allergic rhinitis that relieves symptoms such as sneezing and mucosal edema while decreasing basophils and eosinophils is:
A. Antihistamine
B. Topical nasal steroids
C. Ipratropium bromide
D. Oral decongestants
E. Mucolytics
B. Topical nasal steroids
- Indications for nasal topical steroids include:
A. Allergic rhinitis
B. Chronic sinusitis
C. Otitis externa
D. AOTA (All of the Above)
D. AOTA (All of the Above)
- The topical antibiotic treatment for impetigo is:
A. Mupirocin
B. Fusidic acid
C. Gentamycin
D. AOTA (All of the Above)
D. AOTA (All of the Above)
- Signs and symptoms of Meniere’s disease include:
A. Hearing loss
B. Vertigo
C. Tinnitus
D. AOTA (All of the Above)
D. AOTA (All of the Above)
- Which vasodilating agent is used for the treatment of vertigo?
A. Cinnarizine
B. Furosemide
C. Betahistine
D. A & B
C. Betahistine
- What is the supportive treatment for Meniere’s disease?
A. B vitamins
B. Low-salt diet
C. No caffeine
D. No monosodium glutamate (MSG)
E. All of the above
E. All of the Above
Pre-exposed IgE binds to the surface of:
A. Allergens
B. Basophils
C. Mast cells
D. Eosinophils
E. All of the above
E. All of the above
The only immunologically specific cells of the immune system are:
A. T and B lymphocytes
B. NK cells
C. Macrophages
D. Interferons
A. T and B lymphocytes
Characteristic of the immune system that pertains to an amplified response upon second exposure:
A. Specificity
B. Memory
C. Replicability
D. Transferability
B. Memory
Any molecule that can be specifically recognized by T cells, B cells, or both is called:
A. Antigen
B. Antibody
C. Hapten
D. Helper T cell
A. Antigen