Advanced Ear Quiz

Q1. Which part of the cochlea is responsible for detecting different sound frequencies?

• Basilar membrane
• Tectorial membrane
• Reissner’s membrane
• Round window

Q2. Which structure transmits vibrations from the stapes into the inner ear?

• Ampulla
• Basilar membrane
• Oval window
• Round window

Q3. Which fluid surrounds the membranous labyrinth?

• Perilymph
• Blood plasma
• Cerebrospinal fluid
• Endolymph

Q4. Which structure in the vestibular system detects vertical acceleration?

• Utricle
• Cochlear duct
• Semicircular canals
• Saccule

Q5. Which muscle dampens loud sounds by pulling on the malleus?

• Masseter
• Stapedius
• Tensor tympani
• Auricularis

Q6. What is the primary neurotransmitter released by hair cells onto auditory nerve fibers?

• GABA
• Dopamine
• Acetylcholine
• Glutamate

Q7. Which opening between the middle ear and mastoid air cells can spread infections?

• Cochlear aqueduct
• Eustachian tube
• Aditus to mastoid antrum
• Round window

Q8. Which embryological structure gives rise to the ossicles of the middle ear?

• Neural crest cells
• First and second pharyngeal arches
• Otocyst
• Amniotic cavity

Q9. Damage to which part of the ear can cause sensorineural hearing loss?

• Tympanic membrane
• Malleus
• Auricle
• Hair cells of cochlea

Q10. Which bone contains the structures of the inner ear?

• Parietal bone
• Petrous part of temporal bone
• Occipital bone
• Sphenoid bone