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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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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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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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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Arc Length The definition of radian measure s = rθ The unit circle An angle of 1 radian Proof of the theorem IT IS CONVENTIONAL to let the letter s symbolize the length of an arc‚ which is called arc length. We say in geometry that an arc "subtends" an angle θ; literally‚ "stretches under." Now the circumference of a circle is an arc length. And the ratio of the circumference to the diameter is the basis of radian measure. That ratio is the definition of π. π | = | C D | . |
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DEFINE REFLEX REFLEXES ARE RAPID‚ PREDICTABLE‚ INVOLUNTARY MOTOR RESPONSES TO STIMULI; THEY ARE MEDIATED OVER NEURAL PATHWAYS CALLED REFLEX ARCS. NAME FIVE ESSENTIAL COMPONENTS OF A REFLEX RECEPTOR‚ SENSORY NEURON‚ INTERGRATION CENTER‚ MOTOR NEURON‚ AND EFFECTOR IN GENERAL‚ WHAT IS THE IMPORTANCE OF REFLEX TESTING IN A ROUTINE PHYSICAL EXAMINATION? IT IS AN IMPORTANT DIAGNOSTIC TOOK FOR ASSESSING THE CONDITION OF THE NERVOUS SYSTEM. IT HELPS TO INDICATE DEGENERATION OR PATHOLOGY OF PORTIONS
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most basic circuits is a reflex arc‚ which occurs rapidly in response to inputs from the sensory neurons and consist of only one or a few afferent and efferent cells. Such a response is very quick and automatic. Reflexes are among the oldest and most important features of nervous systems‚ because they allow animal to respond quickly to potentially dangerous events. Materials Reflex hammer with rubber head or mallet Laboratory partner Methodology I. Knee Reflex 1. Allow your partner
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Kuta Software - Infinite Geometry Name___________________________________ Arcs and Central Angles Date________________ Period____ Name the arc made by the given angle. 2) ∠1 1) ∠FQE I F H 1 Q J E D Name the central angle of the given arc. 3) ML 4) ML L L M K 1 Q M K If an angle is given‚ name the arc it makes. If an arc is given‚ name its central angle. 6) Major arc for ∠1 5) RS B T C Q 2 1 3 S R A 7) ∠KQL 8) SVT
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“Joan of Arc” Joan of Arc Thesis statement: Joan led a fascinating life and is one of the most heroic women in all of history: in her early years she struggled with being different‚ in her mid-life she was a military leader‚ and in the time of her death she was wrongly accused of something she had no part in. I. Introduction II. Child of God A. Kindness to others B. Teen Years 1. Voices 2. Visions III. Young at War
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Joan of Arc Joan of Arc by Nancy Wilson Ross in nineteen-hundred and fifty-three and published by Random House. Nancy Wilson Ross was born in Olympia Washington; she wrote many books on the early fifteenth century including Joan of Arc. Nancy Wilson Ross wrote of that Joan of Arc was a simple girl taken advantage of by a wimp of a prince/king who left her to be used and abandoned at the first sign of trouble; by those that she had helped the most. That Joan was divinely guided by her voices
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