Are the eyelids part of the integumentary system? What about the tear ducts?

Answer 1

The eyes and all its parts are classified as organs of the nervous system.

The integumentary and muscular parts of the eyelids include skin to shield the eyes from foreign objects and the superior levator palpebrae muscle, which helps with eye blinking and is controlled by the oculomotor nerve. Because the eyes are a part of the nervous system, the optic nerve controls the tear ducts.

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Answer 2

Yes, the eyelids are part of the integumentary system because they consist of skin, which is the primary tissue of the integumentary system. The tear ducts, however, are not part of the integumentary system; they are part of the lacrimal system, which is responsible for producing and draining tears.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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