BONUS: Which statement describes the correct order for neurotransmitter release from the pre synaptic cell? An action potential hyperpolarizes the membrane, calcium enters the cell, calcium binds to proteins on synaptic vesicles, and neurotransmitter is released into the synaptic cleft An action potential hyperpolarizes the membrane, calcium is released from the synaptic vesicle, calcium binds to proteins on the synaptic vesicles, and neurotransmitter is released into the synaptic cleft An action potential depolarizes the membrane, calcium enters the cell, calcium binds to proteins on synaptic vesicles, and neurotransmitter is released into the synaptic cleft An action potential depolarizes the membrane, calcium enters the cell, neurotransmitters are released from the synaptic vesicle, bind to a recepto and enter the synaptic cleft O An action potential depolarizes the membrane, calcium is released from th synaptic vesicle, calcium binds to proteins on the synaptic vesicles, and neurotransmitter is released into the synaptic cleft

BONUS: Which statement describes the correct order for neurotransmitter release from the pre synaptic cell? An action potential hyperpolarizes the membrane, calcium enters the cell, calcium binds to proteins on synaptic vesicles, and neurotransmitter is released into the synaptic cleft An action potential hyperpolarizes the membrane, calcium is released from the synaptic vesicle, calcium binds to proteins on the synaptic vesicles, and neurotransmitter is released into the synaptic cleft An action potential depolarizes the membrane, calcium enters the cell, calcium binds to proteins on synaptic vesicles, and neurotransmitter is released into the synaptic cleft An action potential depolarizes the membrane, calcium enters the cell, neurotransmitters are released from the synaptic vesicle, bind to a recepto and enter the synaptic cleft O An action potential depolarizes the membrane, calcium is released from th synaptic vesicle, calcium binds to proteins on the synaptic vesicles, and neurotransmitter is released into the synaptic cleft

Anatomy & Physiology

1st Edition

ISBN:9781938168130

Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Publisher:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Chapter12: The Nervous System And Nervous Tissue

Section: Chapter Questions

Problem 7ILQ: Watch this video (http://openstaxcollege.org/l/summation) to learn about summation. The process of...

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Which of the following pairs of terms is correctly matched? Voltage-gated calcium channels : presynaptic cell membrane EPP : action potential Acetylcholinesterase : presynaptic cell membrane Achetylcholine exocytosis : motor end plate
If depolarization occurs at the neuromuscular junction and threshold is met, then voltage-gated calcium channels in the axon terminal will open. voltage-gated acetylcholine receptors will open. acetylcholine receptors will open and close. ligand-gated channels will open nearby. voltage-gated sodium and voltage-gated potassium channels will open nearby.
Which of the following statements about action potentials and information transmission in the synaptic cleft is FALSE? 1. Action potentials determine the amount of neurotransmitters that are released into the synaptic cleft 2.Action potentials ultimately result in more calcium leaving the target cell at the postsynaptic membrane 3. Action potentials determine the duration that neurotransmitters are released into the synaptic cleft 4. Action potentials ultimately result in more calcium entering the neuron at the axon terminal
hen an action potential arrives at the nerve terminal of a neuromuscular junction, which of the following statements best describes the events that occur? Depolarisation of the nerve terminal causes the release of ACh which activates nicotinic receptors on the skeletal muscle membrane to cause Ca2+ entry and muscle contraction. Depolarisation of the nerve terminal opens voltage-gated Ca2+ channels, Ca2+ entry brings vesicles containing ACh to the membrane which form fusion pores causing the release of ACh which activates voltage-gated Na+ channels at the end-plate. Depolarisation of the nerve terminal opens voltage-gated Ca2+ channels, Ca2+ entry brings vesicles containing ACh to the membrane which form fusion pores causing the release of ACh which binds to muscarinic receptors at the end plate. Depolarisation of the nerve terminal opens voltage-gated Ca2+ channels, Ca2+ entry brings vesicles containing ACh to the membrane which form fusion pores…
What chemicals is released by the axon terminals of a motor neuron at a neuromuscular junction? a. ACh b. serotonin c. dopamine d. epinephrine
Watch this video (http://openstaxcollege.org/l/summation) to learn about summation. The process of converting electrical signals to chemical signals and back requires subtle changes that can result in transient increases or decreases in membrane voltage. To cause a lasting change in the target cell, multiple signals are usually added together, or summated. Does spatial summation have to happen all at once, or can the separate signals arrive on the postsynaptic neuron at slightly different times? Explain your answer.
Order the following events of excitation and excitationcontraction coupling. Put 1 by the first event, 2 by the second, and so on._____ The motor end plate generates an end-plate potential._____ The action potential spreads along the T-tubules, SR calcium ion channels are pulled open, and calcium ions flood the cytosol._____ Acetylcholine binds to receptors on the motor end plate, and ligand-gated ion channels open._____ Calcium ions bind troponin, which allows tropomyosin to move away from the actin active site, initiating a contraction cycle._____ The action potential propagates through the sarcolemma and dives deeply into the cell along the T-tubules.
Synaptic fatigue is due to : -a- decreased synthesis of neurotransmittersb- inability to release neurotransmitters by exocytosisc- failure of action potentials to open voltage-gated Ca ++ channels in presynaptic terminald- imbalance in between rates of synthesis and release of neurotransmitters
Subject: Neurophysiology Imagine a toxin that blocks voltage gated K channels. What do you expect to see at the neuromuscular junction when you stimulate the pre synaptic neuron? Would you release neurotransmitter? Would the skeletal muscle contract?
33 Explain how the transmission of an action potential would be impacted if voltage-gated calcium channels could not open. In your answer, explain the usual process ofhow an action potential is transmitted from one neuron to the next neuron.Answer in a sentence format.
match the letters to the correct terms using the figure synaptic vesicle neurotransmitter pre-synaptic neuron post-synaptic neuron neurotransmitter receptor
Is the sentence true or faluse ??! Synaptic vesicls store calcium.