Question

Name the bone that rests upon the lower end of the cochlea and passes the vibrations directly into the fluid within.

(a) malleus

(b) stapes

(c) incus

(d) hammer

I got this question in an interview for internship.

My query is from Mechanism of Hearing in section Audiometry of Biomedical Instrumentation

Answer 1

The correct option is (b) stapes

To elaborate: One of the bones, called the stapes, rests upon the lower end of the cochlea and passes the vibrations directly into the fluid within.  A chain of three small, middle ear bones couple the tympanic membrane to a membrane covered opening, called the oval window. The total force on the oval window is the same as that on the tympanic membrane.