antigen presenting cells

Non-respiratory functions of respiratory tract

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Non respiratory functions of respiratory tract

Various non-respiratory functions are also shown by respiratory tract. Not only gaseous exchange that is the primary function of it. Lungs show defense barrier and metabolic functions. It is the main organ of respiration. Some important compounds are synthesized by it. Non-respiratory functions are: a) Olfaction Provides olfactory sensation. Presence of olfactory receptors in mucus … Read more

Mononuclear Phagocyte System

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There are a series of cells that are distributed throughout the body that have shared the property of being able to phagocytose unwanted matter entering in the body. Those unwanted matter may include bacteria and dead cells. These cells also have important role in defence mechanisms for which they work in collaboration with lymphocytes to … Read more