Synaptic vesicle - Study guides, Revision notes & Summaries

psych 115 midterm 1 UCLA Exam Questions and Answers 100% Pass What is the role of Dorsal root ganglion cells? • DRG = unipolar neurons in peripheral nervous system • Job is to relay somatosensory info from skin to spinal cord Describe a touch stimulus. • Touch to skin generates a receptor potential by opening mechanoreceptor Na channels • Receptor potential passively propagates (flows) to the integration zone • Receptor potential is attenuated (becomes smaller) as it propaga...

The neurotransmitter released into the synaptic gap reaches the target cell by - diffusion You have just observed that each action potential in a burst can trigger additional neurotransmitter release. If calcium ions are removed from the extracellular solution, what will happen to neurotransmitter release at the axon terminal? - there will be more neurotransmitter release The end of the axon where it contacts a target is called the - axon terminal Neurotransmitter is released into the synap...

What best describes how ACh changes the ion permeability of the sarcolemma? ACh binds to receptors in the junctional folds. The end plate potential is primarily, and most directly, caused by the movement of Na+ __ diffuses into the muscle fiber through open chemically gated ion channels. Na+ __ diffuses out of the muscle fiber through open chemically gated ion channels. K+ __ binds to ACh receptors, causing them to open chemically gated ion channels. ACh Which of the following best describe...

PNB 3251 Exam Actual Questions and Answers Real Updated 2024/2025 Terms Solved 100% _____ are inhibitory neurotransmitters A. GABA and Glycine B. Glycine and Glutamate C. Acetylcholine and Benzodiazepine D. AMPA and Kainate - answerGABA and Glycine Figure 4 shows the relationship between Vm and gK+ for a cell whose [K+]in = 250 mM and [K+]out = 17 mM. At 25 degrees C, this cell's resting potential is -40 mV. What is the cell's K+ conductance when Vm = -20 mV. A. 50 mOhm/cm2 B. -20 ...

What are 2 different ways glutamate may be recycled? - Answer - It can be transported back into the cell by re-uptake transporters where it is stored into a synaptic vesicle. - Alternatively, it may be transported into a nearby glia cell where it is going to be broken down back to glutamine. The latter is later carried back to the neuron where it is synthesized back to glutamate and packaged into a synaptic vesicle. Which of these is the main excitatory neurotransmitters? - Answer Glutam...

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MCC Nervous System and Nervous TissueWhich choice best characterizes K+K+ leakage channels? a. transmembrane channels that use energy to allow the movement of K+K+ across the membrane b. transmembrane protein channels that are always open to allow K+K+ to cross the membrane without the additional input of energy c. chemically gated K+K+ channels that open and close according to the binding of other molecules d. common transmembrane channels that are always open for any ion to move through...

The transportation of molecules through membranes depends on the following three factors: correct answers Difference in concentration, difference in pressure, difference in electrical potential How are large molecules digested inside the cell? correct answers They are incorporated into the cell in a vesicle and fused with lysosomes The granular endoplasmic reticulum contains ribosomes which can synthetize _____________ while the agranular endoplasmic reticulum can synthetize ______________...

OTH 509: Final Exam Neuropathology of Alzheimer's Disease Beta amyloid plaques and tau-based neurofibrillary tangles (NFTs) Over the past several years tauopathy (NFTs) have been found to be most robust predictors of clinical syndrome Additionally, recent research has also found problematic inflammation and immune-related issues in AD Typically pathology starts in medial temporal lobe and progresses laterally, posteriorly, and anteriorly Retrograde amnesia (RA) loss of memories from ou...

An mGluR receptor on the postsynaptic cell membrane has a Go G-protein. If a neurotransmitter causes receptor activation and then Go causes a sodium channel to close, what influence is this action likely to have on membrane potential in the postsynaptic cell? Nn - A hyperpolarizing influence What is a metabotropic receptor? - a type of membrane receptor of eukaryotic cells that acts through a second messenger. What is convergence of neural input ? - several presynaptic neurons synapse with ...