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Why is it hard for pathogens to get to a part of the body in which they can cause a disease?
Wiki User
∙ 10y ago
The body has natural barriers to prevent micro-organisms called microbes from entering inside. Some of these are natural barriers, which includes the use of certain body parts to block the entry of the microbes.
One of these natural barriers is the skin, which protects the internal organs from damage caused by diseases, as well as harmful chemicals and radiation from the sun.
The nasal hairs in the nose and sticky mucus along the windpipe also helps prevent diseases by filtering the air. If some irritants get into the nose, the person will cough to shift the mucus down into the throat to be swallowed. The mucus will then be transferred to the stomach so that the microbes can be killed by its acid.
The body also have chemical barriers to prevent the entry of microbes. This includes body fluids with cleansing properties such as saliva and tears, which are capable of washing away particles trapped under the skin's surface.
The acid in the stomach (as mentioned above) bears the ability to kill a majority of microbes before they enter into other parts of the digestive system, which prevents intestine-related diseases.
Wiki User
∙ 12y ago
Wiki User
∙ 10y agobecause the pathogens use the cells like a car and ride them until they can destroy them and are infectious
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The term pathogen is derived from the Greek παθογένεια, "birth of pain." or "that which produces suffering" and that's basically what a pathogen is. It is an agent that causes pain and suffering to its host through disease or illness. Put more simply, a pathogen is anything that causes a disease. The agents that cause these diseases are infectious microbes (more commonly known to people as germs or bugs) such as bacteria, viruses, fungi and parasites. There are many different types of these agents and not all of them are infectious or harmful. In fact the majority of them are harmless and some even beneficial. Therefore it is important to remember, that pathogens refer specifically to those agents that can cause disease, illness or harm to its host. So yes, in answer to the question. pathogens are harmful bacteria (but not just bacteria) that cause disease.
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