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University revision · Neuroscience

Anatomy and Physiology of the Ear

Question 1 of 22 Course: Medicine(Degree)
Q1
The basilar membrane:
Choose an answer, then submit to see the explanation.

About this topic

This topic provides a detailed examination of the ear's anatomy and physiology, encompassing the external, middle, and internal ear structures, including the bony and membranous labyrinths. For Zambian college and university students in medicine, audiology, and ENT specialties, it covers auditory transduction via the organ of Corti, vestibular balance mechanisms through hair cells, and common pathologies like otitis media. Understanding ear anatomy and physiology is fundamental for clinical skills in otoscopy, hearing assessment, and management of hearing loss and vertigo, which are prevalent concerns in Zambian patient populations. The topic aligns with tertiary education standards and professional certification requirements, fostering competencies in diagnostic evaluation, surgical interventions, and rehabilitative audiology. Mastery prepares learners for examinations, clinical rotations, and careers in otolaryngology, neurology, and allied health services within Zambia's healthcare system.

What you'll practise (22 questions)

  1. What is the clinical term for inflammation of the middle ear?
  2. Where are the sensory receptors for hearing located?
  3. In the cochlea:
  4. In the inner ear:
  5. The muscles of the middle ear:
  6. The tympanic membrane:
  7. The basilar membrane:
  8. In the middle ear:
  9. Regarding sound energy:
  10. In the inner ear: The perilymph is virtually identical with the CSF.
  11. In the inner ear: The electrolyte composition of endolymph is very similar to ECF.
  12. In the inner ear: The shortest fibres of the basilar membrane are at the apex.
  13. In the inner ear: During sound transmission only individual basilar fibres vibrate.
  14. In the inner ear: At rest inside a hair cell is about -70 mV compared to endolymph.
  15. In the inner ear: Apices of the hair cells face endolymph, and the bases face perilymph.
  16. In the inner ear: Bending cilia of hair cells in one direction evokes a positive potential and evokes a negative potential (inhibition) if bent in the opposite direction.
  17. In the inner ear: The tunnel of Corti is filled with endolymph.
  18. The most determinant of pitch perceived when sound waves strike the ear is
  19. The tympanic membrane:
  20. The basilar membrane:
  21. Hearing loss is best diagnosed as either conductive or sensorineural by:
  22. Regarding sound energy:

Answer each question above to see the correct answer and a full explanation.