A. Helix
B. Oval window
C. Pinna
D. Cochlae
E. Tympanic membrane
Choose the correct answer from the options given below :
Ear Structure Sequence: External to Inner Ear
To understand the correct sequence of ear structures from the external ear's sound entry point to the inner ear, we trace the path sound waves take:
- C. Pinna: This is the outer, visible part of the ear responsible for collecting sound waves and directing them into the ear canal. It represents the initial entry point for sound.
- A. Helix: A specific ridge forming the outer rim of the ear (Pinna). Its mention after Pinna highlights its role as part of the external structure involved early in sound collection.
- E. Tympanic membrane: Commonly known as the eardrum, this membrane vibrates when sound waves reach it after traveling through the ear canal. It marks the boundary between the external and middle ear.
- B. Oval window: This is a small, membrane-covered opening that connects the middle ear cavity to the upper part of the cochlea in the inner ear. Vibrations are transmitted from the middle ear ossicles to the oval window.
- D. Cochlea: The spiral-shaped cavity located in the inner ear. It contains the sensory receptors for hearing, converting mechanical vibrations into electrical nerve impulses that are sent to the brain.
Following the path of sound, the correct sequence is: Pinna (C) -> Helix (A) -> Tympanic membrane (E) -> Oval window (B) -> Cochlea (D).
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Important Questions from Mixed Topic (CUET PG)
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- What is the key guide to statecraft in the realist tradition?
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A. Berlin Wall is constructed
B. Communist China joins the UN
C. Soviet invasion of Czechoslovakia
D. Berlin Blockade
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A. Politics is rooted in permanent and unchanging human nature which is basically self centred, self-regarding and self-interested
B. Politics is an autonomous sphere of action and cannot therefore be reduced to morals
C. International Politics is an arena of conflicting self-interests
D. The ethics of international relations is situational ethics which is very different from private morality
Choose the correct answer from the options given below:Who among the following political thinkers consider the anarchical self help system to be a compelling factor for States to maximise their relative power positions?
