Beginner Olfactory Epithelium Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. Where is the olfactory epithelium primarily located in the nasal cavity?
- Middle meatus only
- Nasal vestibule only
- Roof, superior nasal concha, and adjacent superior septum
- Inferior meatus and nasal floor
Q2. Which cells of the olfactory epithelium directly detect odorants?
- Goblet cells
- Chondrocytes
- Olfactory receptor neurons
- Corneal endothelial cells
Q3. What type of neuron is an olfactory receptor neuron?
- Pseudounipolar spinal ganglion neuron
- Multipolar lower motor neuron
- Bipolar neuron
- Purkinje cell
Q4. Which cranial nerve is formed by axons from olfactory receptor neurons?
- Facial nerve, CN VII
- Vagus nerve, CN X
- Olfactory nerve, CN I
- Optic nerve, CN II
Q5. Through which bone do olfactory nerve fibers pass to reach the olfactory bulb?
- Cribriform plate of the ethmoid
- Zygomatic bone
- Vomer
- Inferior nasal concha
Q6. Which cells provide structural and metabolic support to olfactory receptor neurons?
- Lens fibers
- Red blood cells
- Osteoclasts
- Sustentacular cells
Q7. Which cells can generate replacement cells within the olfactory epithelium?
- Basal cells
- Mastoid air cells
- Retinal ganglion cells
- Platelets
Q8. What projects from the apical end of an olfactory receptor neuron into the mucus layer?
- Microvilli of intestinal enterocytes only
- Myelin sheaths
- Olfactory cilia
- Stereocilia of the cochlea
Q9. What is the main role of mucus over the olfactory epithelium?
- It focuses light onto the retina
- It mineralizes the cribriform plate
- It dissolves odorants for interaction with receptor cilia
- It contracts the nasal septum
Q10. Which glands are found in the lamina propria beneath the olfactory epithelium?
- Bowman's glands
- Meibomian glands
- Ceruminous glands
- Parotid glands