known cure‚ yet it affects possibly five hundred thousand people in the United States alone. People need to learn more about this disease so it can be brought to the attention of the nation. Multiple Sclerosis is a disease of the central nervous system. It destroys the fatty myelin sheath that insulates your nerve cells. Without this insulation‚ nerve communication is disrupted. The body then makes this worse by repairing it‚ and clogging the area with scar tissue. Signals going from your brain
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-We have 2 parts in our nervous system: The central nervous system (CNS) is the nerves in our brain and spinal chord. The peripheral nervous system (PNS) is a network of nerve cells in the rest of our body. -Our nervous system detects stimuli and allows us to react to them. -Stimulus: a change‚ action or occurrence in the environment that can cause an organism to respond. Eg. Light‚ noise‚ pressure… How do we detect stimuli? -We have sensory organs that detect particular stimuli eg. Skin What
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the odor)‚ and our olfactory mucosa and bulb (roof of nose) accepts odorant molecules carried into the nose by the air. Odorant molecules pass over the mucosa and come into contact with olfactory receptor neurons (ORNs) sensitive to specific odorant types. Each contains an olfactory receptor‚ similar to the retinal photoreceptors in the visual pathway. The olfactory receptor activates and sends a signal from the ORN to the glomeruli in the olfactory bulb‚ which receives sensory input‚ matches it to
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Enterprise Systems Enterprise systems (ES) are large-scale organizational systems built around packaged enterprise system software. Enterprise system software (ESS) • is a set of packaged application software modules with an integrated architecture‚ which can be used by organizations as their primary engine for integrating data‚ processes and information technology‚ in real time‚ across internal and external value chains; • contains deep knowledge of business practices accumulated from vendor
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Comparison of different types of blood pumps Nowadays‚ there are two main types of blood pumps: kinetic pumps and positive displacement pumps. Kinetic pumps: Centrifugal pump is one of the most familiar kinetic pumps. A centrifugal pump converts the input power to kinetic energy in the liquid by accelerating the liquid by a revolving device - an impeller. The most common type is the volute pump. Fluid enters the pump through the eye of the impeller which rotates at high speed. The fluid is accelerated
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EXAMPLE OF MULTI-USER OPERATING SYSTEM The common examples of multi-user operating system’ include VMS‚ UNIX‚ and mainframe operating systems which include MVS system. A single user multi-tasking operating system is an operating system is capable of allowing multiple software processors to run at the same time. EXAMPLE OF NETWORK OR DISTRIBUTED SYSTEM Short for Network operating system‚ NOS is the software that allows multiple computers to communicate‚ share files and hardware devices with one
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1. What is the application Zenmap GUI typically used for? Describe a scenario in which you would use this type of application. Zenmap is an application that is used to scan ports for networks. A scenario where it can be used is to scan the ports of a network to know exactly which ports are opened or closed thus allowing a network administrator to reduce the vulnerability of its network. 2. Which application is used for Step 2 in the hacking process to perform a vulnerability assessment scan
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Digestive System * uniquely constructed to perform its specialized function of turning food into the energy you need to survive and packaging the residue for waste disposal. Parts of the digestive system: 1) MOUTH * is the beginning of the digestive tract; * digestion starts here when taking the first bite of food. * Chewing breaks the food into pieces that are more easily digested‚ while saliva mixes with food to begin the process of breaking it down 2) ESOPHAGUS
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The endocrine system The endocrine system is a collection of ductless glands which are positioned through the whole body. The endocrine glands pass their secretions of hormones directly into the blood stream so that they are always adjacent to blood vessels. Hormones are chemicals in the body produced and secreted in the body that regulate the function of a particular tissue or organ (Bing dictionary). These chemical messengers transfer information from one set of cells to another. Despite many
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The Nervous System The nervous system is the most complex part of the body‚ as they govern our thoughts‚ feelings‚ and bodily functions. It is an important factor in science because it can lead to new discoveries for cures or diseases. The studies of the nervous system helped lower death rates from heart disease‚ stroke‚ accidents‚ etc. The nervous system is a network of neurons (nerve cells) that that sends information to the brain to be analyzed. Neurons live both in and outside the central nervous
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