Answered: True or False: The centrally acting… | bartleby

An Illustrated Guide To Vet Med Term

An Illustrated Guide To Vet Med Term

4th Edition

ISBN:9781305465763

Author:ROMICH

Publisher:ROMICH

Chapter13: Nerves Of Steel

Section: Chapter Questions

Problem 6CTE

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True or False: The centrally acting sympatholytic drug, Clonidine, works through a mechanism of action that
decreases the synthesis, and thus the release, of norepinephrine in adrenergic neurons.
O True
O False

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Flaccid paralysis (resulting from the failure of muscles to contract), induced by the neurotoxin tubocurarine, occurs when this poison blocks the binding of: the inhibitory neurotransmitter melatonin to post-synaptic bicarbonate channels the excitatory neurotransmitter glutamate to post-synaptic calcium channels the excitatory neurotransmitter acetylcholine to post-synaptic sodium channels the inhibitory neurotransmitter glycine to post-synaptic chloride channels the excitatory neurotransmitter serotonin to post-synaptic potassium channels
Xerostomia (dry mouth) and tardive dyskinesia (extrapyramidal symptoms) are the adverse effects of antipsychotic drugs. OTrue OFalse
To treat patients during the acute phase of opioid withdrawal, clinicians may use NSS-2 Bridge device, which is a small electrical nerve stimulator that is placed behind the person's ear and emits electrical pulses. True or False
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Reserpine is a drug that can control high blood pressure by reducing the number of catecholamine neurotransmitters present in the synapse. Epinephrine, norepinephrine, and dopamine are examples of catecholamine neurotransmitters. One of the known side effects of reserpine is to cause the symptoms of Parkinson’s disease. Parkinson's disease is associated with dopamine. Parkinson's disease occurs when the nerve cells in the part of the brain that controls muscle movement are gradually destroyed and the neurons can no longer produce dopamine to coordinate muscle movements. Reserpine causes symptoms by a. inhibiting the release of dopamine from the presynaptic neuron b. blocking the dopamine receptor in the postsynaptic neuron c. breaking down the neurotransmitter acetylcholine in the synapse d. breaking down cholinesterase enzyme in the synapse
True or False: 4) Symptoms of withdrawal are usually the opposite of the effects of the previously used drug. 5) Although their main effects occur in other neurochemical systems, both MDMA (Ecstasy) and cannabis distort the activity of dopamine, suggesting that these drugs have the potential to be addictive. 6) Opioids produce most of their effects by enhancing the release of a variety of neurochemicals from presynaptic axon terminals.
In cholinergic neurotransmission, inhibition of the choline transporter will affect the normal synthesis and release acetylcholineTRUE OR FALSE
A patient has a tumour of the chromaffin cells in the adrenal medulla. Whilst awaiting surgery, he is treated with an antagonist which reduces the consequences of adrenal medulla overactivity by binding alpha adrenergic receptors irreversibly. Which one of the following drugs has he been treated with? Answers A - E A Clopidogrel B Lansoprazole C Aspirin Propranolol E Phenoxybenzamine
We talked about drug effects on neurons in sequence. The effect of alcohol is multi-faceted and the following question asks you to apply your knowledge. Imagine two neurons in sequence. The presynaptic neuron is GABAnergic and the postsynaptic neuron is dopaminergic. The effects of alcohol are not fully understood but it does seem to inhibit GABAnergic neurons. How would the release of dopamine from the postsynaptic neuron change in this case? Explain your answer, being sure to make each connection between concepts clear. If alcohol instead inhibited dopaminernergic neurons, in what way might the ion flow change in the dendrites of the postsynaptic neuron of this example?
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