State the components of saliva?

Saliva is composed of water, electrolytes, mucus, enzymes, and antibacterial compounds.

- Water
- Electrolytes (including sodium, potassium, chloride, and bicarbonate)
- Proteins (including amylase, lipase, and mucin)
- Enzymes (including amylase, lipase, and peroxidase)
- Immunoglobulins (antibodies)
- Hormones (including cortisol and testosterone)
- Growth factors