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Select the incorrect statement i. Oute...

Select the incorrect statement
i. Outer ear consists of pinna and external auditory meatus
ii. Auditory meatus extends inwards to tympanic membrane
iii. Meatus possess sweat glands and fine hairs
iv. Tympanic membrane composed of connective tissue covered with skin from inside and muscus membrane outside

A

ii and iii both

B

ii, iii and iv both

C

ii and iv both

D

Only iv

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question of identifying the incorrect statement regarding the structure of the ear, we can analyze each statement step by step. ### Step-by-Step Solution: 1. **Statement i: Outer ear consists of pinna and external auditory meatus.** - The outer ear is indeed composed of the pinna (the visible part of the ear) and the external auditory meatus (the ear canal). - **Conclusion:** This statement is correct. 2. **Statement ii: Auditory meatus extends inwards to tympanic membrane.** - The auditory meatus (ear canal) does extend inward and leads directly to the tympanic membrane (eardrum). - **Conclusion:** This statement is correct. 3. **Statement iii: Meatus possesses sweat glands and fine hairs.** - The external auditory meatus does contain sweat glands and fine hairs, which help in protecting the ear canal. - **Conclusion:** This statement is correct. 4. **Statement iv: Tympanic membrane composed of connective tissue covered with skin from inside and mucous membrane outside.** - The tympanic membrane is indeed composed of connective tissue, but it is covered with skin on the outside and a mucous membrane on the inside. The statement incorrectly states that the mucous membrane is on the outside and skin is on the inside. - **Conclusion:** This statement is incorrect. ### Final Answer: The incorrect statement is **iv**: "Tympanic membrane composed of connective tissue covered with skin from inside and mucous membrane outside."
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