Vestibular System

Q. Which one of the following structures are responsible for maintaining balance in the body?

1. All of the above
2. Otolith organ
3. Saccule and utricle
4. Semicircular canals

Q. The vestibular apparatus of the inner ear is composed of

1. three semi-circular canals and an otolith organ
2. three semi-circular canals only
3. organ of corti
4. organ of corti and the otolith organ

Q. ____________ and ___________ are the specific receptors of the vestibular apparatus responsible for maintenance of balance of the body and posture.

1. Saccule and utricle
2. Saccule and macula.
3. Crista and utricle
4. Crista and macula.

Q. Where is the organ of corti located in the cochlea?

1. scala vestibuli
2. scala tympani
3. ressiner’s membrane
4. scala media

Q.

What is Crista ampullaris ?

Q. Which of the following is not part of the vestibular system?

1. The utricle
2. The semicircular canals
3. The membranous labyrinth
4. The auricle

Q. Above the rows of hair cells of organ of Corti, there is a thin elastic membrane called:

1. tectorial membrane
2. tympanic membrane
3. reissner's membrane
4. basilar membrane

Q.

The organ of corti is a structure present in

(a) external ear (b) middle ear

(c) semi-circular canal (d) cochlea

Q.

What is the space within the cochlea called?

Q.

Name the ear ossicle which is attached to tympanum.

Q.

State one main function of semicircular canal.

Q.

Comment upon the role of the ear in maintaining the balance of the body and posture.

Q. Which part of the human ear does not play a major role in hearing as such but is otherwise very much required?

1. Eustachian tube
2. Organ of Corti
3. Vestibular apparatus
4. Ear ossicles

Q.

The sense of equilibrium by ear is the function of

1. Sensory crista of the ampulla

2. Sensory cells of the organ of corti

3. Membrane of cochlea

4. Outer membrane of cochlea

Q.

State whether the following statements are true or false.

3. The part of ear associated with balance is cochlea.

1. True
2. False

Q.

Choose the ODD one out of the following terms given and name the CATEGORY to which the others belong

Malleus, pinna, incus, stapes

1. Malleus

2. pinna

3. incus

4. stapes

Q.

Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong:

Semicircular canals, Cochlea, Tympanum, Utriculus

Q. Neural canal is present in?

1. Cranial bones
2. Vertebral column
3. Humerus
4. Tibio-fibula

Q. Auditory cortex is located in the

1. cerebellum
2. hypothalamus
3. cerebrum
4. corpus callosum

Q. Cerebrospinal fluid occurs

1. Between arachnoid and duramater
2. Beneath piamater
3. Between arachnoid and piamater
4. Between duramater and cranium

Q.
Explain any two functions of cerebrospinal fluid in humans.

Q. How many pairs of sympathetic ganglia are present in

1. 10
2. 12
3. 22
4. 31

Q. Match the following and select the correct option.
$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \left(a\right)& \text{Organ of Corti}& \left(i\right)& \text{Connects middle ear and pharynx}\\ \left(b\right)& \text{Cochlea}& \left(ii\right)& \text{Coiled part of the labyrinth}\\ \left(c\right)& \text{Eustachian tube}& \left(iii\right)& \text{Attached to the oval window}\\ \left(d\right)& \text{Stapes}& \left(iv\right)& \text{Located on the basilar membrane}\end{array}$

1. (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
2. (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)
3. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
4. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

Q. The anterior choroid plexus in the brain of man covers

1. Corpora bigemina
2. Mesencephalon
3. Medulla oblongata
4. Diencephalon

Q. The third ventricle of the brain is situated in the

1. Base of telencephalon
2. Roof of metencephalon
3. Base of myelencephalon
4. Roof of diencephalon

Q. Select the correct identification group of labelled parts I, II, III.

1. I- Scala vestibuli, II- Scala tympani, III- Scala media
2. I- Scala tympani, II- Scala media, III- Scala vestibuli
3. I- Scala media, II- Scala tympani, III- Scala media
4. I- Scala vestibuli, II- Scala media, III- Scala tympani

Q. Meninges form outer envelope in

1. Brain
2. Muscle
3. Cartilage
4. Kidney

Q. Elongated reproductive apex is found in _____________.

1. Michelia
2. Chrysanthemum
3. Rose
4. Mango

Q.

The sense of equilibrium by ear is the function of

1. Sensory cells of the organ of corti

2. membrane of cochlea

3. Sensory crista of the ampulla

4. Outer membrane of cochlea

Q. Which part of the human ear maintains equilibrium of the body?

1. Vestibular apparatus
2. Eustachian tube
3. Organ of Corti
4. Ear ossicles