Categorise the following parts under (i) external, (ii) middle and (iii) internal ear. Ear drum, hammer, pinna, cochlea, anvil, stirrup, eustachian tube, tympanum, oval window, semi-circular canals.

Categorise the following parts under (i) external, (ii) middle and (iii) internal ear.

Ear drum, hammer, pinna, cochlea, anvil, stirrup, eustachian tube, tympanum, oval window, semi-circular canals.

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Chapter 11: Sense Organs - Intext Question [Page 156]

Chapter 11 Sense Organs
Intext Question | Q 1. | Page 156

Differentiate between the Rods and Cones of Retina (Type of pigment)

Where is the Cochlea located? Briefly mention its function.

Where is the Semicircular canals located? Briefly mention its function.

Mention, if the following statement is True or False
The part of ear associated with balance is the cochlea.

Long answer question

Draw the neat labelled diagram of the human ear.

Assertion: Human beings Cannot hear infrasonic sounds.
Reason: Sound with a frequency less than 20 Hz is called infrasonic sound.

The eardrum is known as ______.

State the functions of the following:

Auditory nerve

The spiral organ possessing sensory cells for hearing is ______.

Note the relationship between the first two words and suggest the suitable word/words for the fourth place.

Semi-circular canal : Ampulla :: Cochlea : ______.