Parts of an Ear

Q. Both scala vestibuli and scala tympani are filled with .

Q. Malleus, incus and stapes are collectively known as the ear ossicles.

1. True
2. False

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

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

Q. Ceruminous glands are modified .

1. mammary glands
2. sebaceous glands
3. meibomian glands

Q. Which part of the inner ear is filled with endolymph?

1. Scala vestibuli
2. Scala media
3. Scala tympani
4. Stapes

Q.

Name the three ossicles found in middle ear.

Q.

Give the location of Organ of Corti.

Q. Lacrimal gland in the auditory canal produces ear wax.

1. True
2. False

Q. connects the cavity of middle ear with throat.

1. Cochlea
2. Eustachian tube
3. Pinna
4. Ear ossicles

Q.

What substance do the ceruminous glands lining the auditory glands produce?

Q. External ear consists of the projecting part made up of cartilage called _____.

1. malleus
2. incus
3. stapes
4. pinna

Q. Inner ear consists of a bony labyrinth enclosing the labyrinth.

Q.

The gland present in the auditory canal of the ear?

Q.

Mention the exact location of the following

Eustachian tube

Q. Cochlea contains that translates sound vibrations to nerve impulses

1. organ of Corti
2. incus
3. malleus
4. stapes

Q. Statement 1: The smallest bone in the human body is incus.

Statement 2: Part of the inner ear which helps in hearing is cochlea.

1. Statement 1 is true and statement 2 is false
2. Both the statements are true
3. Both the statements are false
4. Statement 1 is false and statement 2 is true

Q.

Give the exact location and function of pinna

Q.

Match the following parts of the ear with their functions.

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{i. Pinna}& \text{a. Collects Vibrations in the air}\\ \text{ii. Cochlea}& \text{b. Region between Pinna and eardrum}\\ \text{iii. Meatus}& \text{c. Transfers vibrations to ear ossicles}\\ \text{iv. Tympanic membrane}& \text{d. Transforms sound to nerve impulses}\\ \text{v. Eustachian tube}& \text{e. Equalises pressure between the inner and outer ear}\end{array}$

1. i ➡ a, ii ➡ d, iii ➡ b, iv ➡ d v ➡ e

2. i ➡ d, ii ➡ e, iii ➡ a, iv ➡ b, v ➡ b

3. i ➡ c, ii ➡ a, iii ➡ e, iv ➡ c, v ➡ d

4. i ➡ e, ii ➡ c, iii ➡ b, iv ➡ a, v ➡ d

Q.

Some statements are given below. Identify the true statements.

(1) Hair provides protection, regulates body temperature and also acts as a sense organ.

(2) Ceruminous glands are modified sweat glands found in the auditory canal.

(3) Nails protect the sensitive tips of digits.

(4) Mammary glands are present in both, males and females.

1. (1), (3), (4)

2. (1), (2)

3. (1), (2), (4)

4. (1), (2), (3)

Q. Which among the following is a part of inner ear?

1. Cochlea
2. Pinna
3. Stapes
4. Tympanum

Q. Scala media is filled with endolymph.

1. False
2. True

Q.

What happens if our tympanum is ruptured? [2 Marks]

Q. Thegland secretes wax.

1. thyroid
2. lacrimal
3. ceruminous

Q.

Give one word for the following:

It allows the transduction of auditory signals into nreve impulses.

Q. Scala vestibuli and tympani are filled with perilymph.

1. True
2. False

Q.

Match the following parts of the ear with functions

$\begin{array}{cc}ColumnI& ColumnII\\ i.Pinna& a.CollectsVibrationsintheair\\ ii.Cochlea& b.RegionbetweenPinnaandeardrum\\ iii.Meatus& c.Transfersvibrationstoearossicles\\ iv.Tympanicmembrane& d.Translatessoundtonerveimpulses\\ v.Eustachiantube& e.Equalisespressurebetweentheinnerandouterear\end{array}$

1. i).➡ c., ii).➡ a., iii).➡ e., iv). ➡ c, v). ➡ d.

2. i).➡ a., ii).➡ d., iii).➡ b., iv). ➡ d, v). ➡ e.

3. i).➡ e., ii).➡ c., iii).➡ b., iv). ➡ a, v). ➡ d

4. i).➡ d., ii).➡ e., iii).➡ a., iv). ➡ b, v). ➡ b.

Q. are the ear ossicles part of facial bones ?

Q. The ear canal is also known as _______.

1. scala vestibuli
2. cochlea
3. scala media
4. auditory meatus