Tear Glands

Q.

Why are metachromatic granules called so?

Q. Which gland of the eye produces tears?

1. Vitreous
2. Aqueous
3. Lacrimal
4. Iris

Q. Sometimes medicine dropped into the eyes come into the nose and throat.Why?

Q. Which gland associated with human eyes known as tear glands?

1. Adrenal
2. Hypothalamus
3. Lacrymal
4. Thyroid

Q.

Tears have the ability to destroy germs by

1. Secreting antigens

2. Secreting lysozyme

3. Secreting antibiotics

4. Secreting antitoxins

Q.

Give the exact location and one function of Lacrimal gland

Q.

1. The light-sensitive part of the eye.

2. A dark muscular diaphragm.

3. Disease caused due to the weakening of the ciliary muscles.

4. Part of the eye that causes the refraction of light rays entering the eye.

5. Part of the eye responds to illumination.

6. Cells responding to the intensity of light.

7. Develops when the eye lens of a person becomes cloudy due to the formation of a membrane over it.

8. The black opening between the aqueous humour and lens.

Q.

Which of the following is not the function of tears?

1. Prevent falling of particles in the eye

2. lubricate the surface of the eye

3. Wash away dust particles

4. Help in killing germs

Q.

State the function of lacrimal glands.

Q.

Mention the exact location of the following.

Lacrimal gland

Q.

Complete the table by filling in the blanks with the appropriate terms

1. (1) - Tears

   (2) - Provide nutrition to the eye

2. (1) - Tears

   (2) - Cleans the front surfaces of the eye from dust particles

3. (1) - Wax

   (2) - Traps dust particles and germs

4. (1) - Wax

   (2) - Keeps the eye moist

5. (1) - Mucus

   (2) - Traps dust particles and germs

6. (1) - Mucus

   (2) - Keeps the eye moist

Q.

State the functions of each of the following:

Lacrimal gland