Saliva is an extracellular fluid produced and secreted by salivary glands in the mouth. In humans, saliva is around 99% water, plus electrolytes, mucus, white blood cells, epithelial cells, enzymes, a
Saliva on a baby's lips
A building being renovated in the Carrollton section of New Orleans
Spitting is the act of forcibly ejecting saliva, sputum, nasal mucus and/or other substances from the mouth. The act is often done to get rid of unwanted or foul-tasting substances in the mouth, or to
Saliva
…Saliva production may also be pharmacologically stimulated by the so-called sialagogues. It can also be suppressed by the so-called antisialagogues. Spitting is the act of forcibly ejecting saliva or other substances from the mouth. In many parts of the world, it is considered rude and a social taboo, and…
A cartoon of Charlie Chaplin spitting on the ground (1931, by Hinko Smrekar)
"Don't spit" prevention poster
The statues of Qin Hui and his wife at Yue Fei's tomb in Hangzhou, China. It was formerly common for visitors to spit, urinate, or defecate on the statues as a continuing denunciation of their supposed role in Yue's 1142 murder, but signs now discourage public spitting as uncivilized.