Ion channels Study guides, Revision notes & Summaries
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NR546 Quiz reviews - Weekly Quiz review
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NR546 Quiz reviews - Weekly Quiz review 
 
 
 Propagation of an action potential to the axon terminal is mediated by voltage-sensitive sodium channels. Influx of sodium through voltage-sensitive sodium channels at the axon terminal leads to opening of voltage-sensitive calcium channels, also at the axon terminal. Influx of calcium through the open voltage sensitive calcium channels leads to docking of synaptic vesicles and secretion of neurotransmitter into the synapse.Agonists cause ligand-gate...
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NR 546 Neurotransmitter Table : Updated Solution
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Ligand-gated ion channels, modulates cell excitability by allowing the flow of calcium and sodium ions into the cell. 
 
Located at the CNS in neurons and glia. 
Excess has resulted in schizophrenia, epilepsy, and mania 
Ligand-gated ion channels, strengthens synapses and involved in strong memory formation. 
 
Excess is associated with memory and learning impairments, psychosis, and excitotoxic brain injury 
Ligand-gated ion channels Functions as post synaptic inhibition by CI-influx 
 
Lack of...
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Bio 181 ASU Exam 3 Questions with complete solutions
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Bio 181 ASU Exam 3 Questions with 
complete solutions 
List the 4 types of glial cells and list a phrase to describe their function. - answer1. Schwann 
cells wrap around the axon of a cell in the PNS, while providing electrical insulation. 
2. Oligodendrocytes do the same thing as Schwann cells but they do it in the CNS. 
3. Astrocytes protect the brain from toxic chemicals. 
4. Microgilia protect the brain. 
T/F When the presynaptic cells contacts a muscle cell, the synapse area is called a mo...
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Bio 181 ASU Exam 3 with complete solutions
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T or F: Potassium ions are at high concentrations inside of cells, including neurons - ANSWER-True 
 
The action potential is a result of: - ANSWER-the movement of ions 
 
The post-synaptic cell can be: - ANSWER-in glands, muscle cells and neurons 
 
Th resting potential of a neuron is - ANSWER--60mV 
 
T or F: The cell body refers to the part of the neurons that begin at the dendrites and extend to the axon terminal - ANSWER-false 
 
T or F: Voltage gated ion channels open when a protein binds ...
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NR 546 Test your Knowledge Week 3 Quiz (GRADED A) Questions and Answers- Chamberlain College of Nursing
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Overview Test Your Knowledge Quiz The late assignment policy does not apply to quizzes and exams. All quizzes and exams close at the time they are due. For quizzes and exams not submitted by t he specified due date and time, a score of zero will be assigned. The Week 1 quiz has 5 questions (multiple choice). You will have one attempt. The late assignment policy does not apply to quizzes and exams. All quizzes and exams close at the time they are due. For quizzes and exams not submitted by the sp...
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Test Bank for Neuroscience 6th Edition by Dale Purves ISBN 9781605353807 Chapter 1-34 | Complete Guide A+
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Test Bank for Neuroscience 6th Edition by Dale Purves 3807, 9, 7225, 7 1: Studying the Nervous System 2: Electrical Signals of Nerve Cells 3: Voltage-Dependent Membrane Permeability 4: Ion Channels and Transporters 5: Synaptic Transmission 6: Neurotransmitters and Their Receptors 7: Molecular Signaling within Neurons 8: Synaptic Plasticity 9: The Somatosensory System: Touch and Proprioception 10: Pain 11: Vision: The Eye 12: Central Visual Pathways 13: The Auditory System 14: The Vestibular Syst...
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ASU BIO 181 Exam 3 Study Guide Correct 100%
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When the presynaptic cell contacts a muscle cell, the synapse area is called a motor end plate. - ANSWER TRUE 
 
Briefly explain why the action potential flows only from the axon hillock to the terminal web. - ANSWER During the course of an action potential there is a refractory period that makes sure the action potential can't trigger backwards by the use of caps on gated sodium channels. The caps close and keeps the action potential flowing in one direction. 
 
How do the glial cells (i.e., m...
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WCU - PHYS 261 FINAL EXAM LATEST ANSWERS 2023
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WCU - PHYS 261 FINAL EXAM LATEST ANSWERS 2023. Nucleic acids are polymers of units called 
A) ribose. 
B) bases. 
C) fatty acids. 
D) amino acids. 
E) nucleotides. 
6) Cell membranes are said to be 
A) actively permeable. 
B) impermeable. 
C) freely permeable. 
D) selectively permeable. 
E) none of the above 
7) In humans, only __________ cells have flagella. 
A) sperm 
B) intestine lining 
C) stomach lining 
D) respiratory tract lining 
E) two of the above 
8) The addition of a phosphate group ...
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Biology Lecture Notes Y. Nagah 1 | P a g e Biology Lecture Notes (STEMer’s guide) 2024 Lecture (3) Resting potential – Action potential Mr. Youssef Nagah Biology Lecture Notes Y. Nagah 2 | P a g e Ion pump and ion channels establish the resting potential
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Biology Lecture Notes Y. Nagah 
1 | P a g e 
Biology Lecture Notes 
(STEMer’s guide) 
2024 
Lecture (3) 
Resting potential – Action potential 
Mr. Youssef Nagah 
Biology Lecture Notes Y. Nagah 
2 | P a g e 
Ion pump and ion channels establish the resting potential of a neuron 
As you know, ions are unequally distributed between the interior of cells and the fluid that surrounds them. 
As a result, the inside of a cell is negatively charged relative to the outside. Because the attraction of o...
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Test Bank for Essentials of Pathophysiology: Concepts of Altered States Fourth Edition by Carol Porth ISBN 9781451190809 Chapter 1-46 | Complete Guide A+
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Test Bank for Essentials of Pathophysiology 4th Edition by Carol Porth (All Chapter complete 1-46, A+ Rated) Table of Contents 1 Chapter 01 - Cell Structure and Function Chapter 02 - Cellular Responses to Stress, Injury, and Aging Chapter 03 - Inflammation, the Inflammatory Response, and Fever Chapter 04 - Cell Proliferation, Tissue Regeneration, and Repair Chapter 05 - Genetic Control of Cell Function and Inheritance Chapter 06 - Genetic and Congenital Disorders Chapter 07 - Neoplasia Chapter 0...
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