Question

Which one of them is the part of the middle ear?
A. Cochlea
B. Utriculus
C. Sacculus
D. Malleus

Answer 1

Human ear is the stato-acoustic organ. It is the phono-receptor or teleo-receptor that helps in hearing and balancing of the body. We have a pair of ears that is present laterally and in the temporal bone. Ear is divided in three parts: Outer, Middle and inner.

Complete answer:
A. Cochlea: It is the coiled portion of labyrinth present in the inner ear and performs the function of hearing. Option (a) is incorrect.

B. Utriculus: The inner ear has a vestibular apparatus that includes both utriculus and saccule. It helps in maintaining body posture and balance. Option (b) is incorrect.

C. Saccule: It also helps in maintaining body posture and balance. Option (c) is incorrect.

D. Malleus: It is a bone present in the middle ear. The other two bones present are incus and stapes. Option (d) is correct.
Hence, the correct answer is (d).

Note: The other parts of the ear are:
- Outer/External ear: It has ear pinna and the external auditory canal.
- Middle ear: It has the three bones viz, malleus, incus, and stapes.
- Inner ear: The inner ear has cochlea and the vestibular apparatus is located above it. Vestibular apparatus is further divided into three semicircular canals and the otolith (saccule and utricle).