Physiology of Special Senses and Vestibular System
About this topic
This topic offers a rigorous exploration of the physiology of hearing, balance, smell, and taste, tailored for tertiary-level medical and physiology students in Zambia. It covers the intricate mechanisms of sound transduction in the cochlea, the function of the vestibular apparatus in detecting linear and rotational acceleration, and the neural pathways for olfaction and gustation. Students will learn about receptor physiology, central processing, and common clinical disorders affecting the special senses, such as conductive vs. sensorineural hearing loss and anosmia. The content is aligned with the learning objectives of Zambian university physiology curricula and is designed to help students tackle complex exam questions on audiograms, nystagmus, and sensory pathway lesions. Mastery of this topic is essential for clinical diagnosis in otolaryngology and neurology, and for performing well in both written and practical assessments in Zambian colleges and universities.
What you'll practise (8 questions)
- The tympanic membrane:
- The basilar membrane:
- In the middle ear:
- Regarding sound energy:
- Relay stations for taste are:
- Typical effects of ageing on the special senses include gradual loss of:
- Smell and taste are similar in that:
- Neurons in the taste pathway have cell bodies in:
Answer each question above to see the correct answer and a full explanation.