8. When Someone Drowns, the Larynx Spasms
As previously mentioned, when water begins to enter the airway, the larynx, or vocal cords, go into a spasm, thereby preventing the person from calling out for help. Eventually, though, the vocal cords may loosen up, which causes water to enter into the lungs. The person may still be unable to call out for help because all of the energy is being expended in trying to keep the head above water.
When the water enters the lungs, wet drowning begins. However, there are other forms of drowning, namely dry drowning, in which water does not enter the lungs.