¶ … anatomy and physiology of the Nervous System
The nervous system is a "network of specialized tissue that controls actions and reactions of the body and its adjustment to the environment." ("Nervous System 2000) There are two segments of the nervous system which include the peripheral and central systems. ("Nervous System 2000)
The peripheral nervous system consists of spinal, cranial, and autonomic nerves, and their branches. ("Nervous System" 2000)
The central nervous system consists of the spinal chord and brain.
The brain might be compared to a computer and its memory banks, the spinal cord to the conducting cable for the computer's input and output, and the nerves to a circuit supplying input information to the cable and transmitting the output to muscles and organs. The nervous system is built up of nerve cells, called neurons, which are supported and protected by other cells. Of the 200 billion or so neurons making up the human nervous system, approximately half are found in the brain. From the cell body of a typical neuron extend one or more outgrowths (dendrites), threadlike structures that divide and subdivide into ever smaller branches. Another, usually longer structure called the axon also stretches from the cell body. It sometimes branches along its length but always branches at its microscopic tip. When the cell body of a neuron is chemically stimulated, it generates an impulse that passes from the axon of one neuron to the dendrite of another; the junction between axon and dendrite is called a synapse. Such impulses carry information throughout the nervous system. Electrical impulses may pass directly from axon to axon, from axon to dendrite, or from dendrite to dendrite." ("Nervous System" 2000)
Bacterial Meningitis
Bacterial Meningitis is a serious disease that can have grave consequences if left untreated. Though many people survive after being properly treated, the long lasting impacts of the disease on the nervous system can be devastating. An article in the journal Developmental Neuropsychology, explains the causes of bacterial meningitis. The author explains,
Meningeal bacterial infection may be caused by a number of organisms, of which Neisseria meningitidis, Streptococcus...
These germs "are constantly mutating to breach your immune system's defenses" ("Germs" 2007). Once these germs breach the immune system, they multiply, resulting in the second link of spreading infectious diseases. As Germs multiply and breach the immune system, a person becomes sick. The third and final step in the chain of spreading infectious diseases from person to person deals with that sickness. Once a person comes into contact with
Infectious Disease Salmonellosis Salmonellosis, named after pathologist Daniel S. Salmon who first isolated the organism from porcine intestine, was first described in 1880 and cultured in 1884 (Salmonellosis1 pp). Salmonellae are motile, gram-negative, rod-shaped bacteria of the family Enterobacteriaceae, and are common in the gastrointestinal tracts of mammals, reptiles, birds, and insects (Salmonellosis1 pp). Salmonellae are potential enteric pathogens and a leading cause of bacterial food-borne illness (Salmonellosis1 pp). With a single overarching
Infectious Diseases Worksheet Select two infectious diseases that have gained prominence in the United States in the past five years and complete the worksheet. Include references. Disease description: Anthrax Cause: Bacteria found in spores, food and animals Mode of transmission: Direct contact, consumption, inhalation Symptoms:fever, shivers & shakes, flu-like symptoms, pneumonia Descriptive epidemiologic data (Person, place, or time): its a bacteria that is ingested or comes in contact with the human or animal Demographic data on affected
In a weird way, that's good news" (Caldwell, 2003, p. 29). Conclusion The research showed that Staphylococcus aureus is a particularly challenging pathogen for clinicians seeking to prevent nosocomial infections in their patients. Over time, S. aureus has shown itself capable of mutating into various resistant strains that make treating it much like trying to hit a moving target. Further, the incidence of infections by S. aureus were found to be
HIV and AIDS Content Knowledge for Dental Professionals: HIV Defined and the History of HIV Research Methodology, Statistical Data Analysis and Study Limitations Expected Results THE DIFFERENCES IN THE LEVEL OF HIV AND AIDS CONTENT KNOWLEDGE FOR DENTAL PROFESSIONALS: Infectious diseases, whether hepatitis, flu, herpes, HIV, AIDS, impetigo, encephalitis, measles, Rocky Mountain Fever, or a host of others have plagued mankind for centuries. Without doubt new infectious diseases will appear in the world's population
Journal of Clinical Infectious Diseases released the findings of a group of stem-cell researchers working on improving the recovery of leukemia patients that received stem cell transplantations, in the article "Ciprofloxacin decreased polyoma BK virus load in patients who underwent allogeneic hematopoietic stem cell transplantation." The hypothesis of the study conducted was that Ciprofloxacin would be an effective treatment against a certain virus that affects patients, called Polyoma BK
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