Neuronal membrane - Study guides, Class notes & Summaries

NSCI Exam 1 Study Questions & Answers 2024/2025 what is a neuronal membrane made of? - ANSWERSfatty molecules that have phosphorous groups attached signal transduction cascade can be initiated by: - ANSWERSneurotransmitters, ions, & secondary messengers there is an accumulation of _______ in the axon hillock because there is a lot of energy required for neurotransmitter release - ANSWERSmitochondria the membrane potential of a neuron refers to: - ANSWERSthe distribution of ionic ch...

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 ...

NROB60 Exam Questions With 100% Verified Answers Action Potential - answerDramatic redistribution of electrical charge across membrane. Rapid reversal of charge across membrane such that the interior becomes relatively positive (depolarization caused by influx of sodium) How to determine MP - answerMicroelectrode in cell, voltmetre used to measure electrical potential between tip of intracellular and extracellular microelectrode Membrane potential at rest - answer~-65mV Key parts of Acti...

NURS 6630: Quiz 1 (Approaches to Treatment) with Complete SolutionsNURS 6630: Quiz 1 (Approaches to Treatment) with Complete Solutions Serotonin (5HT) is a neurotransmitter associated with mood, sleep, and psychosis. There are several serotonin receptors all over the human body. A unique aspect of the second-generation antipsychotics is their ability to block 5HT2a receptors. What is the effect of this inhibition? - ANSWER-A. Stabilizes dopamine concentrations in the CNS B. Induces anxiety C...

What is a decreased effect of the same dose of a medication overtime? - ANSWER-Tolerance Ex. taking 2 pills of ibuprofen over a period of time so now needing to take 3 pills to achieve the same effect What is it called when there is a tendency of some regions of the brain to react to repeated LOW level bioelectrical stimulation by progressively boosting synaptic discharges thereby lowering seizure thresholds? - ANSWER-Kindling Kindling explanation/definition - ANSWER-process of neuronal m...

Solution A contains 100 mmol/L glucose and Solution B contains 50 mmol/L NaCl. Assume that gNaCl is 2.0, σglucose is 0.5, and σNaCl is 0.8. If a semipermeable membrane separates the two solutions, what is the direction of water flow across the membrane? A to B B to A They are at equilibrium 4/28/23, 10:41 AM Quiz: Cellular Physiology: MSCI520: Principles of Physiology I (D01) Qu 1 / 1 pts estion 2 Which of these conditions results in electrolyte abnormality(ies) that cause(s) dimini...

how do neurons communicate? who was right? ☑: golgi- the reticular theory neurons are continuous cajal- neuron doctorine neurons are not continuous CAJAL was right axon hillock ☑: initial segment of the axon where axon and soma attach pathway of neuron signaling ☑: dendrite->axon hillock->axon->axon terminal soma ☑: cell body EXCELLENCE 2 houses nucleus and organelles dendrites ☑: extensions of soma that receive incoming info axon ☑: long extension that carries...

NSCI 175 FINAL (ALL LEARNING OBJECTIVES) EXAM REVIEW QUESTIONS AND ANSWERS, GRADED A+ Explain the reductionist approach - -Breaking the topic of neuroscience down into smaller pieces (Cognitive, Behavior, Systems, Cellular, Molecular). Pros: can be more detailed; get a better explanation of the topics Cons: can bterm-0e hard to see the big picture Compare different levels of analysis in neuroscience research (molecular, cellular, systems, behavioral, and cognitive neuroscience) - -Mol...

EEG pros correct answer: Excellent time resolution - Cognitive, perceptual, linguistic, emotional processes are fast and dynamic - For example, consider theta band (4-8 Hz), a slow rhythm but quite fast for our conscious experience - Or consider gamma (30 -80 Hz) Direct indicator of neuronal activity Multidimensional (time, space, frequency, power, phase, connectivity etc) Portability (observing brain in action) Relatively inexpensive EEG cons correct answer: It is not well-s...

HUBS 191 Nervous System Exam Questions and Answers |100% Verified and Updated 2024 Resting membrane potential -Answer--70mV Open -Answer-Voltage gated ion channels are ? at -60mV Inactive -Answer-Voltage gated ion channels are ? at+30mV Na+ -Answer-Extracellular fluid as a high ? concentration and is therefore positive in comparison to the ICF K+ -Answer-Intercellular fluid has a high ? concentration and is therefore slightly negative in comparison to the ECF Depolarisation -Answer-The ...