Advanced Nose Quiz

Q1. Why can a fracture of the cribriform plate impair olfaction?

• It disconnects the facial nerve from the parotid gland
• It paralyzes the tongue
• It blocks the optic canal
• It can shear olfactory nerve fibers crossing the cribriform plate

Q2. Why can a cribriform plate fracture cause cerebrospinal fluid rhinorrhea?

• It ruptures the nasolacrimal duct
• It opens the maxillary sinus into the orbit
• It can create a communication between the subarachnoid space and nasal cavity
• It connects the nasal cavity directly to the middle ear

Q3. Which anatomical feature can permit spread of infection from the nasal region toward intracranial venous structures?

• Venous communications with orbital and intracranial pathways
• A direct nasal artery entering the cerebral cortex
• A permanent opening into the lateral ventricle
• A lymphatic duct inside the optic nerve

Q4. Why do the nasal conchae improve conditioning of inspired air?

• They increase mucosal contact and modify airflow
• They produce pulmonary surfactant
• They contract as skeletal muscles to pump air
• They close the choanae during inspiration

Q5. Which epithelium characteristically lines most of the respiratory region of the nasal cavity?

• Transitional epithelium
• Pseudostratified ciliated columnar epithelium with goblet cells
• Simple cuboidal epithelium without cilia throughout
• Keratinized stratified squamous epithelium throughout

Q6. Which cells serve as the sensory receptor cells of the olfactory epithelium?

• Retinal ganglion cells
• Bipolar olfactory receptor neurons
• Schwann cells only
• Multipolar lower motor neurons

Q7. Why can mucosal swelling in the middle meatus contribute to paranasal sinus disease?

• It can obstruct drainage pathways shared by several paranasal sinuses
• It prevents vocal fold movement
• It closes the external auditory canal
• It blocks the optic nerve

Q8. Which lymph nodes commonly receive lymph from the anterior part of the nasal cavity?

• Superficial inguinal lymph nodes
• Axillary lymph nodes
• Submandibular lymph nodes
• Popliteal lymph nodes

Q9. How is the external nose structurally supported?

• Entirely by smooth muscle
• Entirely by the mandible
• Only by the nasal septal mucosa
• By a combined framework of nasal bones and cartilages

Q10. Which statement best integrates the anatomy and functions of the nose?

• It combines airway support, air conditioning, drainage pathways, sensory innervation, and olfaction
• It is an avascular chamber used only for sound resonance
• It is a closed cavity containing only olfactory nerves
• It is primarily a muscular organ for swallowing