What is the function of the pharynx during the swallowing process?

What is the function of the pharynx during the swallowing process?

The tongue rolls backward, propelling food into the oral pharynx, a chamber behind the mouth that functions to transport food and air. Once food enters the pharynx, the second stage of swallowing begins.

Is the pharynx responsible for swallowing?

Swallowing is a complex mechanism using both skeletal muscle (tongue) and smooth muscles of the pharynx and esophagus. The autonomic nervous system (ANS) coordinates this process in the pharyngeal and esophageal phases.

What does the pharynx prevent?

Both circular and longitudinal muscles occur in the walls of the pharynx; the circular muscles form constrictions that help push food to the esophagus and prevent air from being swallowed, while the longitudinal fibres lift the walls of the pharynx during swallowing. The pharynx consists of three main divisions.

What happens if you fail a swallow test?

Patients with swallowing problems who start to eat and drink could aspirate, and subsequently develop acute respiratory failure and increase their risk of developing a health-care-associated pneumonia.

Is swallowing a reflex action?

The swallowing reflex is an elaborate involuntary reflex that involves a swallowing center, or a swallowing pattern generator, in the brainstem. Pharyngeal and esophageal peristalsis mediated by the swallowing reflex is known as primary peristalsis.

Are there any medical problems associated with the pharynx?

Head colds sometimes inflame the tubes, causing earaches and hearing difficulties. Other medical afflictions associated with the pharynx include tonsillitis, cancer, and various types of throat paralyses caused by polio, diphtheria, rabies, or nervous-system injuries.

How does an injury to the pharynx lead to death?

In anatomical terms, it borders on large main vessels, the wounds of which in most cases lead to death, with large nerve trunks that provide innervation of many vital organs.

Can a gunshot wound to the nasopharynx be fatal?

Injuries to the nasopharynx are usually complicated by tubootitis or hematotympanum followed by possible acute purulent otitis media. Gunshot wounds of the nasopharynx with the penetration of a wounding projectile from behind are fatal, since the wounding shell, before reaching the pharynx, damages I and II cervical vertebrae and spinal cord.

What is the function of the pharynx in the digestive system?

human digestive system: Pharynx The pharynx, or throat, is the passageway leading from the mouth and nose to the esophagus and larynx. The pharynx permits the passage of swallowed solids and liquids into the esophagus, or gullet, and conducts air to and from the trachea, or windpipe, during…

What are the symptoms of diseases of the pharynx?

Diseases of the Pharynx. Exposure to environmental irritants or allergenic substances could also make one susceptible to chronic pharyngitis. A person suffering from this condition is most likely to suffer from symptoms such as swelling or redness in throat, fever, muscle aches, cough, earaches, malaise or difficulty in swallowing.

In anatomical terms, it borders on large main vessels, the wounds of which in most cases lead to death, with large nerve trunks that provide innervation of many vital organs.

Are there any diseases that can be removed from the pharynx?

Diseases of the Pharynx. In severe cases, doctors may recommend endoscopic surgery to get rid of the pharyngeal pouch. Pharyngeal Cancer: Cancer refers to the development of a malignant growth due to abnormal or uncontrolled cell division. Cancer of the pharynx as well as the larynx are categorized as throat cancer.

Why does my pharyngeal pouch Bulge when I swallow food?

Pharyngeal mucosa could bulge through the weak spots in the cricopharyngeus and thyropharyngeus muscles that are located at the top of the food pipe. A pharyngeal pouch may develop when the fibers of lower pharyngeal muscles are unable to relax as one tries to swallow food.