Which part of the human ear plays no role in hearing as such but is otherwise very much

required?

1. Eustachian tube

2. Organ of Corti

3. Vestibular apparatus

4. Ear ossicles

Inner ear is

Semi circular canal of internal ear:

Membranous canals suspended in the perilymph of the bony canals. Which of these canals we are talking about?

A gymnast is able to balance his body upside down even in total darkness because of:

1. cochlea
2. vestibular apparatus
3. tectorial membrane
4. the organ of Corti

Which part of the human ear plays no role in hearing as such but is otherwise very much required?

1. Eustachian tube

2. Organ of Corti

3. Vestibular apparatus

4. Ear ossicles

Bowman's glands are located in the:

1. proximal end of uriniferous tubules

2. anterior pituitary

3. female reproductive system of cockroach

4. olfactory epithelium of our nose

Vestibular apparatus is composed of:

I. Semi-circular canals
II. Otolith organs
III. Organ of Corti
IV. Crista and macula

1. I, II, III & IV 

2. I, II only

3. IV only 

4. II only

The transduction of sound waves to action potentials takes place:

1. Within the tectorial membrane as it is stimulated by the hair cells.

2. When hair cells are bent against the tectorial membrane causing them to depolarize and release neurotransmitter molecule that stimulates sensory neurons.

3. As the basilar membrane becomes more permeable to sodium ions and depolarizes, initiating an action potential in sensory neurons.

4. Within the middle ear as the vibration is amplified by the malleus, incus, and stapes.

How many of these contain sensory hair cells?
Eustechian tube, utricle, saccule, Semicircular
canals, scale media, scala vestibuli

1. 1
2. 3
3. 4
4. 2