Question
Which of the following statements is/are true about tears secreted by the glands under the top eyelids?
1.It contains sodium bicarbonate.
2.It contains sodium chloride.
3.It contains an enzyme lysozyme which can destroy bacteria.
4.It supplies oxygen to the cornea and crystalline lens.
1.It contains sodium bicarbonate.
2.It contains sodium chloride.
3.It contains an enzyme lysozyme which can destroy bacteria.
4.It supplies oxygen to the cornea and crystalline lens.
Answer: Option D
:
D
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:
D
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