both empathy and sympathy in the reader by posing questions which induce consideration of an alternate standpoint as well as a feeling of helplessness and vulnerability. This vulnerability is denoted firstly by the title: ‘Crow’ has lost his ‘nerve’‚ leaving him devoid of faith in himself and therefore acutely aware of human judgement; as ‘his brain [had] slip[ed]’ he had become susceptible to the influence of his intrinsic condemnation. This theme of vulnerability and loss of character is indispensable
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The Germen chemist Dr. Gerhard Schrader was given a task to develop a pesticide. In just two years tabun was born‚ it had extremely high toxicity and was the first of the substances later referred to as nerve agents. A factory was built and produced during the years of 1942-1945 12‚000 tons of the chemical warfare agent tabun was made; in which the allies took large quantities of tabun at the end of the war. Even though Hitler and his army were losing the war‚ Schrader and his co-workers synthesized
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spinal stenosis at this level. In addition‚ there is a disc osteophyte complex and disc space narrowing at L5-S1 with mild spinal stenosis and left greater than right mild foraminal stenosis. Furthermore‚ there is impingement upon the left L5 nerve root. EMG and nerve conduction report dated 05/06/14 revealed evidence of bilateral L5 lumbar radiculopathy and bilateral peripheral neuropathy. Per operative reports‚ IW underwent left L4-5 and L5-S1 transforaminal ESI on 11/07/2014; 05/15/2015; and 07/24/2015
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A graded potential in physiology‚ is described as local changes in membrane potential that occur in varying grades or degrees of magnitude or strength. When compared to graded potential‚ an action potential is described as brief‚ rapid‚ large (100mV) changes in membrane potential during which the potential actually reverses so that the inside of the excitable cell transiently becomes more positive than the outside. As with a graded potential‚ an action potential involves only a small portion of
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Activity: Action Potentials Name: Caitlin Magnacca Instructor: Date: 03.19.2015 Predictions Exceeding threshold depolarization at the trigger zone______the likelihood of generation of an action potential. increases Action potential amplitude decreases with distance Increasing frequency of stimulation to the trigger zone increases number of action potentials Materials and Methods Experiment 1: Effect of Stimulus Strength on Action Potential Generation Dependent Variable membrane potential Independent
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Trigeminal nerve: V1 and V2 Trigeminal nerve provides large root of sensory nerve to the front of the face and head‚ and a small root of motor nerves to innervate muscles of mastication‚ mylohyoid‚ and digastric (anterior belly) Sensory root Fibres Convey common sensation (touch‚ temperature‚ pressure‚ pain) to the skin of the front of the face and the scalp as far back as the vertex of the head Sensory innervation to the oral cavity‚ dental and paradental structures For this reason‚ branches
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channels- always open allow ions to flow back and fourth across the cell membrane Na cl ‚K and Ca ions and they just flow back and fourth without any gate keeper or obstruction‚ When the neuron is at rest its cytoplasm is Negatively charged. That means that it is not going under depolarization‚ we use the term resting potential. Modality gated channels- specific to sensory neurons‚ open in response to mechanical forces (i.e. stretch‚ touch‚ pressure‚ temperature changes or chemicals) Ligand- is
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Optic nerve sheath diameter (ONSD) The anatomy of the optic nerve sheath : The intraorbital section of the optic nerve extends from the globe‚ where it inserts medially‚ to the optic canal located in the lesser wing of the sphenoid bone. It is encased by a meningeal sheath consisting of dura mater‚ arachnoid mater and pia mater. Cerebrospinal fluid is contained in the trabeculated subarachnoid space and is continuously and slowly filtered. As a result the optic nerve sheath is in direct
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allow an Action potential to occur in a neuron. This will be achieved by firstly‚ defining the purpose of neurons in the body along with a description of the components within a neuron and how they enable information to be passed through the cell membrane and on to other neurons. Secondly‚ the resting potential of a neuron will be explored with relation to the concept of selective permeability and the purpose of the Sodium - Potassium pump. Thirdly‚ the molecular basis of the Action Potential will
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Activity 1: Investigating the Refractory Period of Cardiac Muscle Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The cardiac muscle is capable of which of the following? You correctly answered: c. autorhythmicity 2. Phase 2 of the cardiac action potential‚ when the calcium channels remain open and potassium channels are closed‚ is called the You correctly answered: a. plateau phase. 3. Which of the following is true of the cardiac action potential? You
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