Given below is a display of certain parts of an organ: What is the collective term given to the parts labelled 1 , 2 , and 3 ?

The middle ear contains three ossicles called malleus, incus and stapes which are attached to one another in a chain-like fashion. The malleus is attached to the tympanic membrane and the stapes is attached to the oval window of the cochlea. The ear ossicles increase the efficiency of transmission of sound waves to the inner ear. An Eustachian tube connects the middle ear cavity with the pharynx. The Eustachian tube helps in equalising the pressures on either sides of the ear drum.

Given below is a display of certain parts of an organ: Name the organ where these parts are present.

The middle ear is the part of the ear between the eardrum and the oval window. The middle ear's function is to transmit sound from the outer ear to the inner ear. The middle ear contains three ossicles called malleus, incus and stapes which are attached to one another in a chain-like fashion. The malleus is attached to the tympanic membrane and the stapes is attached to the oval window of the cochlea. The ear ossicles increase the efficiency of transmission of sound waves to the inner ear. An Eustachian tube connects the middle ear cavity with the pharynx. The Eustachian tube helps in equalising the pressures on either sides of the ear drum.

Given below is a display of certain parts of an organ: State the function of this particular part of the organ shown in the diagram.

The middle ear is the part of the ear between the eardrum and the oval window. The middle ear's function is to transmit sound from the outer ear to the inner ear. Structure Function Malleus, Incus and Stapes The function of the tympanic membrane and the auditory ossicles is to transmit and amplify sound and to convert sound waves into pressure waves in the perilymph and endolymph. Eustachian tube The primary function of the Eustachian tube is probably to optimise sound transfer through the middle ear to the inner ear by facilitating gas transfer and pressure equalisation between the middle ear and the nasopharynx. perilymph and endolymph. Round window and oval window In the middle ear, the round window vibrates in the opposite phase to the vibrations entering the inner ear through the oval window.

E M B I B E

ICSE Self - Study in Biology>Self Practice Model Test Papers>Chapter 17 - Self Practice Model Test Paper- 2>SELF PRACTICE MODEL TEST PAPERS

Ajay Kumar Bhattacharya and Pradeep Singh Solutions for Exercise 1: SELF PRACTICE MODEL TEST PAPERS

Author:Ajay Kumar Bhattacharya & Pradeep Singh

Ajay Kumar Bhattacharya Biology Solutions for Exercise - Ajay Kumar Bhattacharya and Pradeep Singh Solutions for Exercise 1: SELF PRACTICE MODEL TEST PAPERS

Attempt the practice questions from Exercise 1: SELF PRACTICE MODEL TEST PAPERS with hints and solutions to strengthen your understanding. ICSE Self - Study in Biology solutions are prepared by Experienced Embibe Experts.

Questions from Ajay Kumar Bhattacharya and Pradeep Singh Solutions for Exercise 1: SELF PRACTICE MODEL TEST PAPERS with Hints & Solutions

MEDIUM

10th ICSE

IMPORTANT

ICSE Self - Study in Biology>Chapter 17 - Self Practice Model Test Paper- 2>SELF PRACTICE MODEL TEST PAPERS>Q 1

(a) Name the following: The scientist who proposed chromosomal theory of inheritance.

MEDIUM

10th ICSE

IMPORTANT

ICSE Self - Study in Biology>Chapter 17 - Self Practice Model Test Paper- 2>SELF PRACTICE MODEL TEST PAPERS>Q 6

Question Image
The diagram above shows the front view of the human eye in different conditions of dim and bright light. Write the function of the part labelled.