Rmp ap - Study guides, Class notes & Summaries

NSG 531 Rush Advanced Pharmacology: Exam 3 Questions With Correct Answers Latest Updated 2024/2025 / Graded A+. what is the difference between cardiac myocyte action potential and that of the CNS or ANS? - ANSWER nerve cell action potential is very short cardiac action potential is much longer they are longer to have adequate filling time in order to get a good contraction for a reasonable bolus of blood the only way this can happen is if the action potential is longer this will also mean ...

RAC DRUGS LATEST 2023 ALREADY PASSED (EU) MA Market Authorization or product license issued by health authority. Valid for 5 years and subject to 1 renewal. 4 EU procedures to obtain an MA National, centralised, mutual recognition, decentralized procedures MAH A legal person or legal entity who must be established in the European Economic Area comprising of 28 member states. What does an MA include? Active substance international non-proprietary name, trade name. SmPC Summary of Product Char...

Medsci 206 - Module A (Synapses and plasticity, CNS cells, development) Questions And Answers A+ Graded 2024/2025 neuron structure - ANS-polarised cells axon - presynaptic - site of outgoing info, contact other neurons dendrites - postsynaptic - side of synapses (incoming info) synapses - ANS-specialised site of neuron-neuron contact rapid communication form neuronal circuits transform electrical info to chemical then back to electrical information processing units of the ...

RMP-APExcitable tissues - correct answer Include: neurons, striated (skeletal muscle cells), smooth and cardiac muscle cells, glandular cells Properties of the cell membranes necessary for excitation - correct answer (ionic asymmetry, Ability to change permeability for ions when they are stimulated When the permeability changes, only specific types of ions should pass in a certain direction - selectivity RMP - correct answer an electrical charge across the plasma membrane The inte...

NROB60 FINAL NOTES Exam Questions With 100% Verified Answers Properties of the action potential - answerrising phase overshoot falling phase undershoot What happens when the current reaches threshold? - answergenerate APs at a low rate What happens when current increase? - answerrate of AP generation increases increases the frequency of AP (all or none situation) What does the firing frequency of APs reflect? - answerthe magnitude of the DEPOLARIZING current (since hyperpolarizing wou...

Excitable CellsWhat is the charge of the resting membrane potential of all cells? Does the ICF or the ECF carry this charge? What is the average RMP value? Do most cells have an RMP that exists in a broad range or a narrow range? - correct answer All cells carry a negative resting membrane potential, and the ICF is negatively charged relative to the ECF. The average RMP value = -70mV. Most cells have an RMP that is small and w/in a narrow range. What types of cells are excitable cells? What i...

Chapter 7 1. What is action potential (AP)? - correct answer the form of electrical signals called action potentials (AP), which are rapid changes in membrane potential during which the inside of the cell becomes positively charged. (-100mV) From the negative to the positive. 1. Where does an AP originate and travel to? - correct answer Originates in the axon hillock and travels to the axon terminal. 2. Define leak channels and their locations. - correct answer • Always open (non-gated)...

the cardiac cycle is divided into 2 groups of events, what are these? correct answers 1) electrical events 2) mechanical events which event triggers the other one? how? correct answers mechanical events are triggered by electrical events, the action potential triggers atrial and ventricular contraction what occurs during the electrical events? correct answers these have to do with the generation of the AP and conduction of that AP through the heart what occurs during the mechanical eve...

Electrical Activity of the HeartWhat is an action potential? - correct answer Rapid change in the transmembrane potential followed by a return to the resting membrane potential When do changes in transmembrane potential occur? - correct answer During changes in the permeability of the cell membrane to intracellular and extracellular ions Is the duration of APs in cardiac cells shorter or longer than in nerves cells or skeletal/smooth muscle? - correct answer Much longer What is the effe...

Resting membrane potential is the product of which channels? K+ leak channels Na+/K+ ATPase What makes neuronal messaging across a membrane possible? A potential because of the charge separation across the membrane At RMP what side are the + and - charges Outside + Inside - How is the RMP maintained? (2 parts) 1. K+ diffusion is in dynamic equilibrium 2. Na/K pump sends out 3Na for every 2K it brings in Channels used by local potentials? Gated K+ channels Action potentials use which channel...