Definition Reflex tests are simple physical tests of nervous system function. Purpose A reflex is a simple nerve circuit. A stimulus‚ such as a light tap with a rubber hammer‚ causes sensory neurons (nerve cells) to send signals to the spinal cord. There‚ the signals are conveyed both to the brainand to nerves that control muscles affected by the stimulus. Without any brain intervention‚ these muscles may respond to an appropriate stimulus by contracting. Reflex tests measure the presence and
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The Reflex Arc Reflex actions are the way the body responds rapidly to painful situations or the threat of painful situations. The reflex are is the mechanism by which the response occur The reflex arc is the name given to the pathway (or circuit) along which the initial stimulus and the corresponding response message travel There are five parts to a reflex arc: 1.) The Receptor‚ which receives the initial stimulus 2.) The Sensory (afferent) Nerve‚ which carries the impulse to the spinal cord or
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* | * Moro reflex - The Moro reflex is often called a startle reflex because it usually occurs when a baby is startled by a loud sound or movement. In response to the sound‚ the baby throws back his/her head‚ extends out the arms and legs‚ cries‚ then pulls the arms and legs back in. A baby’s own cry can startle him/her and begin this reflex. This reflex lasts about five to six months. * Grasp reflex - Stroking the palm of a baby’s hand causes the baby to close his/her fingers in a grasp
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and Physical Effects on Patellar Reflex May 8‚ 2014 Introduction The purpose of this experiment was to monitor our body’s reaction to stimulation and see how our nervous system‚ specifically the somatic nervous system can affect the patellar reflex. “The patellar reflex‚ also known as the knee jerk reflex is an example of a simple two neuron‚ monosynaptic reflex arc”(Marieb‚ Mitchell and Smith‚ 2014). We tested the strength of the knee reflex activity and whether it was affected
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Henry Rankin is working for Reflex Systems‚ as a team leader in charge of implementing a new customer relationship management (CRM) software. The company sells exercise equipment to high schools and colleges and small to midsize business for recreation centers. The team is divided in Chicago and Los Angeles and given a ten weeks deadline to install and train. One of the member of the Chicago’s team‚ Sally Phillips‚ has leave the team before the end of the project because of a lack of “quality of
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This case describes a situation where Henry Rankin and his team are responsible for the installation of a new CRM system for the western and eastern sales offices. They got a short time of ten weeks‚ and a small budget. His team deals with the resignation of a member and some tension between other members and the leader. Facts • Personnel involved in this case include Henry Rankin (software engineer)‚ Nicole Dyer (Vice President of Information Technology)‚ Mike Frazer (CEO)‚ Sally Phillips‚ Bob
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in. 2. Find a friend and test the patellar reflex. a. Which muscle contracted? The muscle that contracted is the quadriceps. b. What nerve is carrying the afferent impulse? The nerve that is carrying the afferent impulse is the sensory nerve of the femoral nerve. c. What nerve is carrying the efferent impulse? The nerve that is carrying the efferent impulse is the motor nerve of the femoral nerve. 3. Find a friend and test the plantar flexion reflex. a. Describe the response. The response to
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Reflex acts were one of the first human reactions to being studied. Descartes was the first beginning a study model of reflex acts‚ this to be able to demonstrate that the body worked like any other machine. Another scientist in studying this phenomenon‚ Robert Whytt. He was a Scottish physicist and physicist. He inclined his research around action-reflex‚ differentiating voluntary and involuntary movements. Describing the pupil reflex to light (reflecting Whytt)‚ he further proposed that the arches
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Name: Stephanie Frost Section: Bio 201 Lab Report: Reflex and Special Senses Please fill out this report and submit it to the dropbox. Do not hand in your own form. It will not be graded and you will receive a zero for the lab. You must get all parts correct to get credit for the question * Please note that although you do not hand in items in observations
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Jeannette Rankin was born near Missoula‚ Montana on June 11‚ 1880. She successfully fought for a woman’s right to vote in Washington State and Montana and was elected to the U.S. House of Representatives in 1916. The first woman to serve in the U.S. Congress‚ during her two separate terms Rankin helped pass the 19th Amendment and was the only Congressperson to vote against both WWI and WWII. She died in 1973. Jeannette Rankins was a vigorous feminist ‚ a life time pacifist and a reformer for social
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