The function of the pharynx is to transfer food from the mouth to the esophagus and to warm, moisten and filter air before it moves into the trachea. The pharynx is a part of both the digestive and respiratory systems.Know More
The pharynx, which is located behind the mouth and nose, is also known as the throat. When food is pushed to the back of the mouth by the tongue, the trachea or windpipe closes, and the food moves into the pharynx. Then, a combination of both voluntary and involuntary muscles work to swallow the food, forcing it into the esophagus, which moves it along to the stomach. A thick lining in the pharynx protects it from rough food particles and harsh chemical food components.
When not being used to transfer food, the pharynx provides a place for air to warm up and acquire the proper humidity levels before it enters the trachea and moves into the lungs. Air passes through the nose or the mouth directly into the pharynx. The mucous lining of the pharynx filters dust particles and other contaminants out of the air. The air then flows through the larynx at the top of the trachea and continues on to the lungs.Learn more about Organs
The esophagus, also known as the food pipe, carries food from the mouth to the stomach. It is part of the digestive system and is approximately 10.5 inches long in fully grown adults.Full Answer >
The esophagus is the muscular tube in humans and most other vertebrate organisms that carries food from the pharynx, or throat, down to the stomach. It is lined with a thick, moist pink tissue called mucosa.Full Answer >
Inhaling cigarette smoke irritates the tissues along the trachea, according to Healthline. Known as the respiratory mucosa, this tissue creates mucus when irritants contact it. Over time, the mucus catches tar coming from cigarettes, and the gunk hinders the filtration of debris out of the airways.Full Answer >
Human inhalation is achieved by breathing in through the nose or mouth, and then the air travels through the trachea and into the bronchial tubes. WebMD explains that the air is divided between the bronchial tubes that lead to tiny sacs named alveoli attached to bronchioles. The alveoli exchange the oxygen into the surrounding blood-filled capillaries that deliver the oxygen to the heart for distribution throughout the body.Full Answer >