Sore throats are very common and usually nothing to worry about. They normally get better within a week. The cause of a sore throat isn't always obvious. These conditions are more serious and should be seen by a doctor as soon as possible see below.
Sore throat, cough and phlegm – all you need to know about your horrible cold
Jump to content. Lymph nodes are small, bean-shaped glands throughout the body. They are part of the lymph system , which carries fluid lymph fluid , nutrients, and waste material between the body tissues and the bloodstream. The lymph system is an important part of the immune system , the body's defense system against disease. The lymph nodes filter lymph fluid as it flows through them, trapping bacteria, viruses, and other foreign substances, which are then destroyed by special white blood cells called lymphocytes. Lymph nodes may be found singly or in groups.
Sore throat is a common symptom that ranges in severity from just a sense of scratchiness to severe pain. Pharyngitis is the medical term for sore throat. Sore throat is caused by inflammation of the throat pharynx. The pharynx is the area behind the tonsils. A sore throat may be the first symptom of a mild illness, such as a cold or the flu, or of more severe illnesses, such as mononucleosis, strep throat or scarlet fever.
Republish our articles for free, online or in print, under Creative Commons licence. The other major sites of contact with the outside world come from the openings in the body — and our nose and mouth have the greatest exchange with the outside world as we breathe in and out. All surfaces of the body are lined by specialised cells that protect us against pathogens, and the specialised type of cells change depending on where they are in the body.