The significance of hair and wax in auditory canal is

maintainence of moisture in the ear

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prevention of the entry of foreign particles

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Prevention of the entry of small insects

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Maintenance of body balance

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Solution

The correct options are
B
prevention of the entry of foreign particles

C
Prevention of the entry of small insects

Small hair and earwax coat the skin lining the ear canal and carry dirt, dead cells, and other debris out of the canal. They also kill microorganisms. The wax helps to protect the eardrum from injury.

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Similar questions

Hairs present in our nostrils prevent the entry of _______ into our respiratory system.

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

Name two barriers, which prevent the entry of microbes into the body.

Match the following:

$\begin{matrix} A & B 1. H a i r s a n d m u c u s i n n o s t r i l s & a . a s s i s t s i n i n h a l a t i o n a n d e x h a l a t i o n 2. C a r t i l a g e i n t r a c h e a & b . i n c r e a s e s s u r f a c e a r e a o f a b s o r p t i o n 3. A l v e o l i & c . p r e v e n t s e n t r y o f f o r e i g n b o d i e s 4. D i a p h r a g m & d . p r e v e n t s c o l l a p s e o f t r a c h e a l s t r u c t u r e \end{matrix}$

Assertion: pH of certain secretions in the body prevent the growth of many microorganisms.

Reason: It acts as a type of physical barrier which prevents the entry of microorganisms.

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