Action Potentials An action potential is the change in electrical potential associated with the passage of an impulse along the membrane of a muscle cell or nerve cell. An action potential occurs when a neuron sends information down an axon‚ away from the cell body. A threshold is the minimum amount of stimulation needed to start a neural impulse (you know‚ the electrical impulses that travel throughout your body carrying important information). Action potentials generated by neural impulses are
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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 a particular molecule that causes a receptor to open. The ligand gated channels open in response to a neurotransmitter binding to the surface of a channel receptor on a postsynaptic cell membrane‚ when open these channels allow the flow of electrically
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UNIVERSITY ENTRANCE EXAMINATION PHYSICS Duration : 2 hours Please read the following instructions carefully. 1. This paper is made up of 50 Multiple-Choice questions and comprises ELEVEN (11) printed pages. 2. Do not write on the question paper. 3. Answer all questions and indicate your answers on the answer sheet provided. Marks will not be deducted for wrong answers. 4. Do not take any paper‚ including the question paper or unused answer sheets‚ out of the examination
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which cell has the larger resting membrane potential? Explain. If the permeability to K is higher in A than in B‚ then the resting membrane potential (rmp) will be closer to the equilibrium potential in cell A‚ which means the rmp will be more negative in cell A than in cell B; or in other words‚ the potential difference will be LARGER in cell A. 2. Predict the effect of a reduced extracellular concentration of Na+ on the magnitude of the action potential in an electrically excitable cell. If there
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the importance of following orders is crucial. when following orders you should do so as commanded. it is important to follow orders‚ for the orders might better you and help you with the situation your in. in my situation I decided not to wear my fleece nor Gortex or gloves‚ even though I was commanded to. I decided the fact that I wasn’t cold to disobey a order which was given by the sergeant. disobeying an order can lead to many things. disobeying orders can lead to disciplinary actions or Consequences
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Following directions is very important for a number of reasons. It makes things easier to do‚ it guarantees that things are done right‚ it eliminates confusion‚ and it saves a lot of time overall. When the instructions of the teacher are followed‚ things tend to go smoothly and work well. When we‚ the students‚ do things the right way and follow directions‚ we show that we can handle instructions to difficult assignments and that we are cooperative‚ intelligent‚ and dependent. Anything can be messed
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M.E.S.S.S.M. PU COLLEGE CHIKMAGALUR 1st P.U.C‚ First Unit Test – August - 2014 Subject : English Time: 1-30 Houre Marks: 50 I. Answer the Following questions in a word‚ a phrase or a sentence each: - 1X9=09 1. What do you think the phrase‚ face of heaven‚ signifies? 2. What is the meaning of “Ethiope” ? 3. Name the commodities taxed in Monaco. 4. What was cost to hire a guillotine and an executioner from France ? 5. The death sentence was converted
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(a) Define the term equilibrium potential and use the Nernst equation (see Appendix) to show how the equilibrium potentials for both sodium and potassium are calculated. Equilibrium potential is the potential of the membrane when there is no net flow of ions from one gradient to the other gradient. The ions are equal and are opposite of each other but not moving from one side to the other. Sodium: Ena=2.303((8.31 J m-1 K-1)(310K))/((1(= 9.65 x 104 c m-1))(log(150/15))= 61.54 mV Ek=2.303((8
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MINI-CASE: FACING TERMINATION? The silence was beginning to become uncomfortable as you searched for words to answer the question from your chief executive officer (CEO). The boardroom had never looked so big‚ and it seemed her words were still echoing: “How could it get to this? You sat here telling us how this new software program would dramatically improve our marketing efficiencies and customers’ repurchase frequency. It has been over two months‚ and the bloody thing isn’t even working
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Your rental property needs new occupants‚ so where find potential tenants. Before handing over the keys to the home‚ you need to make sure quality tenants are signing the lease. Besides the tenants‚ there are other things you need to keep in mind. Here are three things a property management company can help you avoid. The Unruly Tenant and the Eviction Process A terrible tenant is a landlord’s worst nightmare. Handling the daily tasks of being a landlord is stressful‚ but unruly tenants can make
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