Unformatted text preview: material and bacteria each day, which can quickly invade the tissues of the intestine and proliferate. E coli is naturally found in the intestine, however, a recent outbreak in Germany has claimed the lives of more than 19 people when they ingested more than their body could handle. Intact skin, mucous membranes, serves as a barrier against the transmission and spread of infection. Specific skin tissues have specialized abilities to defend the body against infection. Normal flora prevent bacterial entry into deeper tissues. Skin appendages such as the eyelashes and nasal and ear hair prevent contamination by dust and droplets. Mechanism begins when a blood vessel is injured. Vasospasm occurs, the blood vessel retracts and constricts and reduces blood flow through the vessel....
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- Spring '08
- Bacteria, Specific skin tissues, blood vessel retracts, prevent bacterial entry