How long can a human live without water How long can human live without food? A human can't live without food for 3 or 4 days (however your body type is,) and a human can't live without water for 2 or 3 days.
Cavities refer to tooth decay, which occurs when specific types of bacteria produce acid that destroys the toothâs enamel and its underlying layer, the dentin. Signs & Symptoms. Cavity symptoms include: 1  Toothache. 2  Sensitivity to sweet, hot or cold foods or drinks.
The nasal cavity is part of the human respiratory system. Also known as the nasal fossa, it is a small air-filled chamber behind the nose, connected via the pharynx to the l â¦ arynx (voicebox) and the trachea. Above and in front of the nasal cavity are the sinuses (paranasal cavities), located inside the facial bones.