Question

Given below are four terms among which one is an odd term. Identify that odd term and add the name of the category to which remaining three belong.

Semicircular canals. Cochlea, Tympanum, Utriculus.

• A. Semicircular Canals
• B. Cochlea
• C. Tympanum
• D. Utriculus

Answer 1

The correct option is C

Tympanum

The correct option is C

Explanation of the correct option:

1. The tympanum is the membrane that acts as a partition between the external and middle ear.
2. It vibrates in response to the sound waves.
3. It is the part of the middle ear.

Explanation of the incorrect option:

Option A:

1. The three Semicircular canals of the inner ear are located in three planes.
2. These canals are arranged at a right angle to each other.
3. These canals maintain body balance.

Option B:

1. the coiled part inner ear appears like a snail and is located posterior to the membranous labyrinth called Cochlea.
2. The auditory nerve is connected with the Cochlea.
3. It helps us to hear.

Option D:

1. Utriculus is a large sac whose frontal part consists of three semicircular canals, containing ampullae of the semicircular canals.
2. It is also part of the inner ear.
3. It helps to maintain body balance.

Final answer:

Hence, according to the question, the odd term is Tympanum(part of the middle ear), and the rest of the terms are the parts of the inner ear.