Endolymph contains white crystals of called
All of the above
— Concept: This question tests your knowledge of the structure and components of the inner ear, specifically focusing on…Concept: This question tests your knowledge of the structure and components of the inner ear, specifically focusing on the otolith organs and their crystalline structures.
Why (D) is correct: The endolymph of the saccule and utricle (parts of the inner ear involved in balance) contains microscopic white crystals primarily composed of calcium carbonate (). These crystals are collectively known as otoconia, otoliths, or sometimes referred to as ear dust. All these terms refer to the same structures.
Why other options are wrong:
- (A) Otoconia: This is a correct term for the crystals, but not the only one.
- (B) Otolith: This is also a correct term for the crystals, but not the only one.
- (C) Ear dust: This is another correct, albeit less formal, term for the crystals.
Common Mistake: Students might think these terms refer to different structures, but they are synonyms for the same calcium carbonate crystals found in the inner ear.
NEET Tip / Mnemonic: Remember that the 'oto' prefix relates to the ear, and 'lith' means stone, so otoliths are literally 'ear stones'.
Correct Answer: (D)
All of the above