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The areas of the body that we consider sterile are those part of the body that are not exposed to the environment. Our skin is home to vast numbers of several different types of microbes as or the openings that lead deep within. All of the organs inside our body should be considered sterile with the exception of the lumen of the G.I. tract. While the intestines are an organ inside us it houses materials that where once exposed the the environment and is home to microbes as well. Now there are times that bacteria can penetrate our organs and become infected but under normall circumstances you consider them sterile.
Sterile means free of living organisms, so a sterile field is an area that is completely clean of any living organisms. This is the kind of field that surgery is done in to prevent infection. A non-sterile field is an area that though clean, may have living organisms such as bacteria on it.
That area would be called sterile.
if it gives you grammar, use it.
The four sterile sites in the human body are the brain, blood, cerebrospinal fluid, and the internal tissues and organs. These sites are typically free from normal microbiota and are considered to be sterile environments within the body.
The areas of the body that we consider sterile are those part of the body that are not exposed to the environment. Our skin is home to vast numbers of several different types of microbes as or the openings that lead deep within. All of the organs inside our body should be considered sterile with the exception of the lumen of the G.I. tract. While the intestines are an organ inside us it houses materials that where once exposed the the environment and is home to microbes as well. Now there are times that bacteria can penetrate our organs and become infected but under normall circumstances you consider them sterile.
Urine is typically sterile when it exits the body, but it can become contaminated with bacteria from the skin or external environment within a few minutes to an hour.
Can you? Yes. Should you? No.
If you use one that isn't sterile, you will not know where the bacteria are from. The swab or the area you swabbed.
Sterile, Fallow Or Baren
No, the pharynx is not sterile. It contains normal microflora including bacteria and other microorganisms that play a role in the body's immune system and overall health.