The diagram alongside represents the structure found in the inner ear. Study the same and then answer the questions that follow:
Figure

(i) Name the parts labelled A, B, C and D.
(ii) Name the part of the ear responsible for transmitting impulses to the brain.
(iii) Name the part labelled above which is responsible for:
1. Static equilibrium
2. Dynamic equilibrium
3. Hearing.
(iv) Name the audio receptor cells which pick up vibrations.
(v) Name the fluid present in the inner ear.

Open in App

Solution

(i)

(ii) The cochlea converts the sound pressure patterns from the outer ear into electrochemical impulses, which are passed on to the brain via the auditory nerve.

(iii) 1. B - Utriculus and C - Sacculus function in a static equilibrium.
2. Three semi-circular canals, each at a right angle to one another, function in a dynamic equilibrium.
3. The cochlea is the main hearing organ of the ear.

(iv) The organ of Corti consists of audio receptor cells that pick up vibrations.

(v) The fluid in the inner ear is called the perilymph.

Suggest Corrections

Similar questions

Q. The diagram alongside represents the structure found in the inner ear. Study the same and then answer the questions that follow:
Figure

(i) Name the parts labelled A, B, C and D.
(ii) Name the part of the ear responsible for transmitting impulses to the brain.
(iii) Name the part labelled above which is responsible for:
1. Static equilibrium
2. Dynamic equilibrium
3. Hearing.
(iv) Name the audio receptor cells which pick up vibrations.
(v) Name the fluid present in the inner ear.

Draw a labelled diagram of the inner ear. Name the part of the inner ear that is responsible for static balance in human beings.

Given below is the diagram of a part of the human ear. Study the same and answer the questions that follow :
(i) Give the collective biological term for Malleus, Incus and Stapes.
(ii) Name the parts labelled A, B and C in the diagram.

(iii) State the functions of the parts labelled 'A' and 'B'.
(iv) Name the audio receptor region present in the part labelled 'A'.

With reference to the human ear, answer the questions that follow:
(a) Give the technical term for the structure found in the inner ear.
(b) Name the three small bones present in the middle ear. What is the biological term for them collectively?
(c) Name the part of the ear associated with (l) static balance (2) hearing (3) dynamic balance.
(d) Name the nerve, which transmits messages from the ear to the brain.

Q. The diagram alongside represents the structure of the human ear.
(i) Write the names of the parts labelled a to g.
(ii) State briefly the functions of the parts b, d and g.
(iii) Name the main division of the ear.
(iv) Which is the smallest bone in the human body?
(v) What is labyrinth?
Figure

Join BYJU'S Learning Program