Lockjaw is caused a Clostridium tetani bacterium which produces a highly dangerous toxin that affects the brain and the nervous system. Tetanus was well known to ancient people who also recognized the relationship between wounds and fatal muscle spasms. In 1897 Edmond Nocard proved that tetanus antitoxin gave passive immunity in humans and could be used for treatment. In 1924 P.Descombey developed the vaccine which was used to prevent tetanus induced by battle wounds. Clostridium tetani spores can be found
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Tetanus is a neuromuscular disease caused by an anaerobic‚ Gram-positive‚ spore-forming bacillus called Clostridium tetani‚ a species of bacteria of the Clostridium genus‚ that produces a powerful neurotoxin called tetanospasmin The most common first symptom of tetanus is spasms or tightening of the jaw muscles referred to as "lockjaw". Other symptoms include headaches‚ sudden muscle spasms-often in the stomach‚ sweating and fever‚ painful muscle stiffness throughout the body‚ difficulty swallowing
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“LOCKJAW” | | Cong Le | 12/3/2012 | Abstract: Tetanus is a severe infection causes by Clostridium tetani‚ a spore-forming anaerobic bacterium. This disease affects many people in the developing-countries where the immunization is not really available. On the other hand‚ tetanus is very rare condition in developed countries like America. Clostridium tetani has all the characteristics of the Clostridium genus. After entering the human wounds‚ this organism secreted two kinds of potent biological
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glass. When I got home my mother told me I should go get a tetanus immunization in case I had contracted tetanus. I did not know what tetanus is‚ so then I decided to do some research. Tetanus‚ also more commonly known as Lockjaw‚ is caused by Clostridium tetani. Lockjaw can occur as a bacterial infection mainly introduced via a break in the skin or a puncture wound into the bloodstream by soil‚ saliva and fecal matter (https://en.wikipedia.org/wiki/Tetanus). In rare circumstances‚ tetanus can be contracted
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BACTERIA Identification (Classification I. Domain: Bacteria 1. Gram Negative Proteobacteria (Phylum XII) Non-Proteobacteria 2. Gram Positive LOW G+C (Phylum XIII) HIGH G+C (Phylum XIV) II. Domain: Archaea III. Domain: Eukarya (Gram Negative 1. Bordetella pertussis Pertussis/Whooping Cough 2. Eikenella corrodens Human Bite Injury
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1 Diffusion is the movement of molecules (or ions) from a high concentration to low concentration. Diffusion is form of passive transport as energy does not need to be generated. Diffusion is complete when the concentration of molecules is equal on either side of the membrane. Diffusion rate can be influenced by many factors such as: Concentration gradient across the the membrane. Permeability of the membrane to the diffusing substance. Temperature. Surface area of the membrane. Question 2 2.1
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Melissa Babajko Microbiology 214BA Dr. May June 6‚ 2012 Staphylococcus aureus- Is a facultative anaerobic‚ Gram-positive‚ salt positive‚ cocci shaped bacterium. Staphylococcus aureus is found as normal part of the skin floral in the nasal passages and on the skin. An estimated twenty percent of people naturally have harmless Staphylococcus aureus on their skin and are long-term carries for Staphylococcus aureus. Staphylococcus aureus is the most common strand of Staphylococcus in humans to date
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El Camino College Compton Educational Center Summer 2010 General microbiology lecture part review questions for final exam Adapted by Dr. Eyob Wallano 1. Which is mismatched? A. parasitism – one organism benefits and the other receives no benefit B. competition – one organism gives off substances that inhibit or kill other organisms C. predator – seeks out and ingests live prey D. scavengers – feed on live to dead cells and wastes E. omnivores – feed on plants and flesh 2. The conversion of
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Tetanus is a medical condition characterized by a prolonged contraction of skeletal muscle fibers. The primary symptoms are caused by tetanospasmin‚ a neurotoxin produced by the Gram-positive‚ rod-shaped‚ obligate anaerobic bacterium Clostridium tetani. Clostridium tetani spores can be found most commonly in soil‚ dust and manure‚ but also exist virtually anywhere. If deposited in a wound the neurotoxin interferes with nerves that control muscle movement. The signs and symptoms of tetanus may
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Biology Project Autumn Brown 3rd block Mrs. Stephens More than 2‚000 years ago‚ Aristotle began grouping plants and animals into various categories. Although he did not consider the idea that different organisms were related by descent‚ he devised a system that placed these organisms in a hierarchy. Through classification systems‚ scientist have found it easier to find answers to important questions. This way
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