Question

Discuss upper respiratory tract infection.”

Answer 1

Upper airway infection or upper respiratory tract infection are common cause of illness in human. Common cold is the most common and frequently occurring URI.

Major cause of URI are microorganisms such as virus and bacteria are inhaled into the tract. URI affect the nasal cavity, ethmoidal air cells and frontal and maxillary and sphenoid sinuses. As well as affect pharynx, larynx and trachea.

Rhinitis is a group of disorder characterized by inflammation and irritation of the mucous membrane of nose. It is may be acute or chronic, allergic or non allergic. Rhinorrhea is the classical sign of rhinitis.

Rhinosinusitis or sinusitis is the inflammation of the paranasal sinuses and nasal cavity. It is also chronic and acute.

Pharyngitis is a sudden painful inflammation of the pharynx, the back portion of the throat that include the posterior third of the tongue, soft palate and tonsils.

Tonsilitis are composed of lymphatic tissue and are situated on each side of the oropharynx. Adenoiditis or pharyngeal tonsils consist of lymphatic tissue near the center of the posterior wall of the nasopharynx.

Laryngitis, is another URI

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