1 Which of the structures below report head acceleration to

1. Which of the structures below report head acceleration to the central nervous system? A) maculae B) cristaeampullares C) vestibule D) semicircular canals

2. Which of the following structures in the inner ear is essential for maintaining static equilibrium? A) utricle B) saccule C) semicircular canals D) cochlea.

3. Which test assesses the conduction deafness by comparing bone and air conduction hearing? A) Romberg test B) Weber test C) Rinne test  D) Barany test

Solution

Answer:

1. (B) Cristae ampullares. Cristae ampullares reports head acceleration to the central nervous system.

2. The options of the question are confusing. Static or linear equilibrium is maintained by vestibule. While semicircular channels are responsible for dynamic equilibrium. Vestibule contains both both utricle and saccula. Hence, both A and B are the correct answer.

3. (C) Rinne test is the correct answer. Rinne test compares both bone and air conduction hearing.