Fluid Reabsorption There is a small net loss of fluid because of the difference between hydrostatic pressure and osmotic pressure. The lymphatic system picks up fluid that leaks out of the capillaries and returns it to the circulation. Lymphatic capillaries start in capillary beds Lymphatic capillaries snake their way through capillary beds to pick up the excess fluid and return it back to the venous circulation. As fluid pressure increases‚ it forces open little flaps in the lymphatic capillaries
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has yet to be broken. Countries most affected by leprosy include India‚ Brazil‚ Ethiopia‚ Bangladesh‚ Indonesia‚ Nepal‚ Nigeria‚ and the Democratic Republic of the Congo. With Hansen’s discovery‚ mycobacterium leprae was the first known bacterial pathogen to become associated with a human disease. This is the reason
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The importance of cleanliness in all the actions of life is almost too apparent to need mention‚ were it not that it is so much neglected by many. Not only cleanliness of the skin‚ the hair‚ the teeth‚ the nails‚ and the clothing is necessary‚ but also cleanliness in all our habits. By this means we shall avoid many diseases which are entirely due to dirt of various kinds. The old and excellent definition that dirt is matter in the wrong place suggests that it should be removed; and when we remember
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cross contamination 1. List 5 infection risks in the health care setting: exposure to bodily fluids incorrect hand washing technique poor staralisation not wearing protective equipment 2. What is a pathogen? A pathogen is a microorganism that can cause desease. 3. what are standard precautions? Standard precautions are a set of control practices to stop the spread of desease that can be captured by having contact with blood‚ bodily fluid‚ non-intact skin and mucous membranes. 4. what are additional
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act as a substrate attachment for the transpeptidase in the cell wall‚ and when activated prevent peptiodoglycan reactions that strengthen links in the cell wall – this leads inevitably to cytolysis and cell death. 5. Do they work against all pathogens? Explain Antibiotics are a treatment of an infection caused by bacteria. They target only bacteria - they do not attack other organisms‚ such as fungi or viruses. This is because antibiotics attack the cell wall in destroying it and fungi’s and
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Unit ICO2 Causes and spread of infection Assessment Criteria Outcome 1 Understand the causes of infection The learner can: 1. Identify the differences between bacteria‚ viruses‚ fungi and parasites? Bacteria : Bacteria are one cell structures that multiply rapidly and can become a colony of 2 million within 2 hours. Viruses : Visible can only be seen with an electron microscope they can float in the air‚ sit on a door handle or remain non-living. They become active when they are allowed
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large bronchi (medium-size airways) in the lungs that is usually caused by viruses or bacteria and may last several days or weeks. Causes Acute bronchitis can be caused by contagious pathogens‚ most commonly viruses. Typical viruses include respiratory syncytial virus‚ rhinovirus‚ influenza‚ and others. Bacteria are uncommon pathogens but may include Mycoplasma pneumoniae‚ Chlamydophila pneumoniae‚ Bordetella pertussis‚ streptococcus pneumoniae‚ and haemophilus influenzae. * Damage caused by irritation
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either increase or decrease susceptibility Portal of Exit (site where the pathogen is confined such as respiratory tract‚ urine‚ feces‚ skin‚ or blood and body fluids). Mode of transmission (infectious agent being transmitted from natural reservoir to susceptible host either direct and indirect. Examples: skin-to-skin‚ soil‚ droplets like coughing or sneezing‚ indirect such as vehicles or vectors. Portal of Entry: a pathogen enters a susceptible host such as fecal-oral route‚ skin and blood Nursing
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The causes of disease in humans A disease is an abnormal or particular condition that can affect parts of an organism‚ or all of it. A disease can be due to a pathogen such as a bacterium‚ a fungus or a virus or it could be due to our genetics‚ or even our lifestyle choices. Throughout this essay I will discuss these various ways. A microorganism is a single or multicellular organism which is the most popular cause of disease. There are many type of microorganisms such as a virus‚ bacterium‚ prion
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The purpose of this lab is to isolate a bacterial population from the normal throat flora. A streak plate method will be used to obtain a pure culture of a Gram positive coccus genus of bacteria. Several biochemical tests will be performed to aid in the identification of this unknown bacterium. Biochemical tests are a series of tests used to identify certain bacterium The various tests that are used in this lab are the catalase test‚ oxidase test‚ blood hemolytic test‚ MSA‚ blood agar‚ and PEA/ab
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