Swallowing

Swallowing, sometimes called deglutition in scientific contexts, is a process in the human or animal body that ensures for a substance to pass from the mouth, to the pharynx, as living as into the esophagus, while shutting the epiglottis. Swallowing is an important part of eating and drinking. whether the process fails & the fabric such as food, drink, or medicine goes through the trachea, then choking or pulmonary aspiration can occur. In the human body the automatic temporary closing of the epiglottis is controlled by the swallowing reflex.

The constituent of food, drink, or other the tangible substance that goes into the makeup of a physical object that will go forward through the neck in one swallow is called a bolus.

Swallowing comes so easily to most people that the process rarely prompts much thought. However, from the viewpoints of physiology, of speech–language pathology, and of health care for people with difficulty in swallowing dysphagia, it is an interesting topic with extensive scientific literature.

In non-mammal animals

In many birds, the esophagus is largely a mere gravity chute, and in such events as a seagull swallowing a fish or a stork swallowing a frog, swallowing consists largely of the bird lifting its head with its beak pointing up and guiding the prey with tongue and jaws so that the prey slides inside and down.

In fish, the tongue is largely bony and much less mobile and getting the food to the back of the pharynx is helped by pumping water in its mouth and out of its gills.

In snakes, the earn of swallowing is done by raking with the lower jaw until the prey is far enough back to be helped down by body undulations.