What is the upper respiratory system?
The upper respiratory system consists of everything from the nose to the trachea, including the nasal cavity, the frontal, maxillary and spinoidal cavities, ethmoid air cells and larynx. Bronchi and bronchioles of the airways, lungs and alveoli form the lower airways. The upper and lower respiratory system cooperates on the replacement of carbon dioxide for oxygen in the body.
When inhalation, the air moves through the nose and travels to the nasal cavity. This cavity is behind and slightly above the nose. When air passes through this structure, it is heated or cooled as needed to be at one degree of body temperature. Short, thick hair called vibrissae cleans the air. The material filtered from the air moves to the esophagus and then into the stomach.
Another stop in the upper respiratory system is ethmoidal air cells and frontal, maxillary and spinoidal cavities. These are small cavities lined with mucous membranes that surround the nasal caits. This system also includes larynx or voicemail. Located in the throat, the larynx is afterIt uses for breathing, sound production and preventing food from entering the trachea. The larynx is home to vocal cords that are necessary for speech.
located between the trachea and the larynx is epiglottis. Epiglottis closes during swallowing to prevent food from entering the trachea. It is made of cartilage and covered with mucous membranes. Although it does not protect the trachea during swallowing, Epiglottis shows up towards the tongue.
The bronchi is the last part of the upper breath system. It's also called a guide. The bronchi connects the larynx to the lungs. It is lined with cells producing mucous membranes that capture pollen and other inhalation particles to prevent them from entering the lungs. The trachea ensures the cough to force the air rather than in the mines.
The upper respiratory system is susceptible to infection, especially things such as common colds, otis media, sinusitis, tonsillitis, pharyngitis and laryngitis. These diseases usuale lasts between seven and ten days. Symptoms include sneezing, face pressure, nasal overload, low degree fever, cold, cough and sore throat. Treatment usually involves a lot of rest and fluids along with the treatment of pain and fever with medication over the counter. Antibiotic resistance has led to a decrease in the use of antibiotics for most minor infections of the upper respiratory tract.