There are many diseases that fit into each of the four categories, if not one category, maybe two or more.
• The infectious category refers to an infectious disease that is caused by a biological agent such as a virus, bacterium or parasite. Infectious diseases are the invasion of a host organism by a foreign replicator, generally microorganisms, often called microbes. Microbes that cause illness are also known as pathogens. The most common pathogens are various bacteria and viruses. An infectious disease is termed contagious if it is easily transmitted from one person to another. An organism that a microbe infects is known as the host for that microbe. In the human host, a microorganism causes disease by either disrupting a vital body process or stimulating the immune system to mount a defensive reaction.
• An inherited disease is very different from an infectious disease, as inherited diseases are likely to pass onto descendants. Each cell in the body contains 23 pairs of chromosomes. One chromosome from each pair is inherited from your mother and one is inherited from your father. The chromosomes contain the genes you inherit from your parents. There may be different forms of the same gene. There may be a faulty version of a gene that results in a medical condition, and a normal version that may not cause health problems. Depending on which gene is the dominant gene, relies on whether a disease is inherited or not.
• Physical diseases usually involve the ‘physical’ appearance of a person, this could be permanent or temporary fixture. Physical diseases are diseases of the body, not the mind. Many things including bacteria, virus, and genes can cause physical diseases. Physical diseases can be divided into acute and chronic. E....
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... occur because of exposure to a fungus when there is a weakness in the body. This weakness can result from a compromised immune system or in an individual who provides a warm, moist environment in which the fungi can grow. Fungi usually reproduce either sexually or asexually, but asexual reproduction is the most common type of reproduction in most fungi. In sexual reproduction the male and female cells fuse, to produce spores inside a fruiting body. In asexual reproduction they reproduce by simply making little copies of themselves.
Protists are single celled eukaryotic organisms that are able to reproduce asexually and sexually. During sexual reproduction, two protists join and exchange genetic material in the nucleus. Prostist make people ill when they become human parasites they infect via puncture wounds and through consumption of contaminated food or water.
“There is no real definition for disease. ” This is a claim that Melody Petersen makes in her book. Most would define disease as an abnormality in regards to health. This seems logical, but it leads to the following question : what is “normal” ? What is the definition of “healthy” ? Asking major pharmaceutical companies these questions will most likely lead to the following conclusion: disease is malleable. In other words, it is open to a certain level of interpretation. According to Petersen, giant drug manufacturers consider disease to be a business. Thus, they create a market out of people’s physical or emotional shortcomings. In 1998, Pharmacia, a large American manufacturer of prescription drugs,
11.2) Asexual reproduction involves a single individual / parent who pass duplicates of all its genes to its offspring without the fusion of gametes. Sexual reproduction involves two parents who give rise to offspring that have unique combination of genes inherited from the two parents.
· genetics: occasionally the disease has a tendency to run in certain families (inherited or genetic predisposition), but this is not common.
Bloodborne Pathogens are pathogenic microorganisms that can eventually cause disease. They are found in human blood and other bodily fluids such as synovial fluid, semen, vaginal secretions, cerebrospinal fluid and any other fluid that mixes or has contact with blood. The bloodborne pathogens are pathogenic, which means they are disease causing, and they are also microorganisms, which means that they are very small so the human eye cannot see them.
Disease and parasitism play a pervasive role in all life. Many of these diseases start with microparasites, which are characterized by their ability to reproduce directly within an individual host. They are also characterized by their small size, short duration of infection, and the production of an immune response in infected and recovered individuals. Microparasites which damage hosts in the course of their association are recognized as pathogens. The level of the interaction and the extent of the resultant damage depends on both the virulence of the pathogen, as well as the host defenses. If the pathogen can overcome the host defenses, the host will be damaged and may not survive. If on the other hand the host defenses overcome the pathogen, the microparasite may fail to establish itself within the host and die.
A genetic disease is a mutation caused by the absence of a gene or by products of a defective gene. ("Genetic Disease") ("What Are Genetic Disorders?")
Pathogens are a type of microorganism that spreads viral and bacterial diseases. These diseases when present in human blood and body fluids are known as blood borne pathogens, and can spread from one person to another. (Worcester polytechnic institute) The most serious types of blood borne diseases are the hepatitis B virus (HBV) and hepatitis C virus (HCV), which can cause liver damage; and HIV (human immunodeficiency virus), which is responsible for causing AIDS (acquired immune deficiency syndrome). The blood borne pathogens can be spread when the blood or body fluids (semen, vaginal fluid, breast milk, and amniotic fluid) of an infected individual comes into contact with mucous membranes or an open sore or cut on the skin of another person. Mucus membranes are located in the eyes, nose, mouth, and other areas as well. ("Bloodborne pathogens: MedlinePlus Medical Encyclopedia") Two of the most common ways that pathogens are transmitted is through the exchange of fluids during sexual intercourse or by sharing infected IV needles. (Worcester polytechnic institute)
Then the next slide was placed containing the eukaryotic microorganism yeast known as Candida. The same procedure of viewing was repeated with the microorganism starting at 4X again. When viewed it contained buds and seemed to be in little sections connected together. The little buds appeared to be in the colors of purplish red. In continuation, the microorganism Fungi known as Asperigillus was viewed next under the microscope. It seemed to have spores which are used by the eukaryotic microorganism for reproduction and long filaments of hyphae. The hyphae were purplish in color and the spores seemed dark purplish or black in color. It was quite fascinating to the
In this essay I am going to investigate whether health is easily defined as the absence of disease or physical injury. According to Health psychology (2009) ‘World Health Organisation defined health as a complete state of physical, mental and social well-being and not merely the absence of disease or infirmity’. In order to achieve good physical a nutrition diet is needed, healthy BMI, rest and adequate physical exercise is needed.
not related to lifestyle may be due to medical causes. Finally the forth type is a chronic
Jack, Emily (2008). Diseases: A brief guide to causes, symptoms, history, and treatment. Retrieved from http://www.learnnc.org/lp/pages/4067
Disease. It is not everyday that a person hears that eye opening word. When anyone says the word disease, one’s mind goes to bad places. When a person begins to suspect that something is wrong with their body, they immediately seek a physician's help. Symptom after symptom a person becomes worried and afraid of that “what if feeling” that the one word leaves on someone. Diseases do not come very often but when they come, they come fast with lasting effects on one’s body. Sometimes, an individual diagnosed has to take a medicine or even multiple medicines that may not even help with the negative effects like pain. After running multiple tests, doctors begin to discuss possible treatments with the patient, while they are still in fear
Dictyostelium discoideum is an amoeba in the class Dictyostelia which is a group of cellular slime molds, also known as social amoebae. Their life cycle begins when they hatch from spores into myxamoebae. In this stage they are unicellular amoebae that reproduce by mitosis. Mainly found in soil these amoebae have a very short life cycle, only 24 hours long. Dictyostelium discoideum have 3 methods of reproduction; mitosis, sexual reproduction, and asexual reproduction. The first method is carried out while the cell is in its unicellular form. The second mode occurs when cells of opposite mating types fuse together creating a macrocyst that forms a zygote that engulfs surrounding bacteria and as it germinates, haploid myxamoebae are released.
They are often spread through interactions between infected individuals and ones who are not. Often, day to day encounters among people initiate the spread of sickness without even being aware of their doings. Aside from people spreading sickness among each other, another method would be through contamination. Often food, water, or medical supplies that are not properly cleaned could increase the risk of contamination to uninfected individuals (Infectious Diseases). Overseas, issues developed causing an increase in spreading. When individuals travel overseas they are subject to a higher risk infection due to lack of sanitation in foreign countries. If infected, upon return home diseases could be spread in such a manner. Travelers and military personnel who may be vaccinated are still at risk of obtaining an illness. Individuals from foreign countries that find themselves in the United States also have the ability to spread illnesses if they are carrying an active virus (The Global Infectious Disease). Certain infections could eventually result in contact with an infectious disease physician. Those individuals who practice within such a specialty are educated in identifying and treating infectious diseases. Their route of treatment is conducted around each patient specifically to ensure the best care possible. It is often that post-care of a certain illness