How is sweat part of the immune system?

Answer 1

Sweat isn't so much part of the 'immune' system, as the 'defense' system.

Your body has three lines of defense

The first is the skin

The second is sweat, hair and white blood cells.

Sweat helps keep you cool, but when you get hotter, your skin pores open up more, and sweat on top of these prevents alot of airborne bacteria getting into your bloodstream via that.

If you wanted to know, the third is your bodies antibodies!

Answer 2

when you run or get very tired, the body gets rid of wastes inside your body by dumping them out of the sweat pores. sweat is made up of excess mineral salts and water... and if your body had too much mineral salts it can go on hard diseases. that's why sweat is important.

Answer 3

Sweat is loaded with lactic acid. Lactic acid destroys pathogens by disrupting their cell membrane's integrity. Also, sweat produces a lot of salt, and pathogens, especially bacteria, don't like it at all.

Answer 4

As part of the oral mucosal system, the salivary gland is also exposed to a large number of harmless antigens in the form of foods. To ensure that our white blood cells do not react to these proteins, immune responses in the salivary glands are tightly regulated.