If tears are salty why don't they burn our eyes like salt water does?

Answer 1

Normal tears that cover the corneal surface comprise three layers: the lipid, or oil layer, which is the outer layer of the tear film and helps prevent the lacrimal layer beneath it from evaporating or overflowing the lower eyelid the lacrimal, or watery layer, which is the middle layer and contains salts, proteins, and an enzyme called lysozyme that actually protect and nourish the eye the mucoid, or mucus layer, which is the bottom layer of tears. It contains cells called goblet cells that cause the tears to adhere to the eye.

Answer 2

becaus of the urea; CORRECTION: It's basic chemistry. Na+, Sodium, Salt (when combined with Cl-) The body never moves water, it moves elements.... then the water follows. So it's the Na+ that your body deposits to move sweat to the surface of the skin to cool the body. The water evaporates, the body is cooled, the salty taste is left until it is washed off.

Answer 3

All cells in the body have a certain amount of salt in them (called osmolarity).

The liquids surrounding the cell have the same amount of salt (called isotonic).

If the liquid had more salt, water would rush out of the cells the cell would shrivel up. If the liquid had less salt, like pure water, the water would rush into the cell and the cell would pop.

Answer 4

you may have fibers in your body that go with the sweat

Answer 5

Even though tears are salty, they don't burn your eyes like salt water does because the salt content is very low.