Autonomic neurons whose cell bodies reside in the peripheral nervous system and are activated by action potentials of thoracolumbar origin release: a. epinephrine b. norepinephrine c. acetylcholine d. dopamine e. glutamate
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- Autonomic neurons whose cell bodies reside in the peripheral nervous system and are activated by action potentials of thoracolumbar origin release:
a. epinephrine
b. norepinephrine
c. acetylcholine
d. dopamine
e. glutamate
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Solved in 2 steps
- A presynaptic neuron in the cerebrum transmits information to hundreds of other neurons. This process is an example of (a) convergence (b) divergence (c) temporal summation (d) spatial summation (e) a graded potentialGlutamate's effect when it binds with protein receptors on the post synaptic membrane is to: a. Initiate movement of potassium ions out of the membrane b. Initiate movement of sodium ions into the membrane c. Initiate movement of sodium ions out of the membrane d. Initiate movement of potassium ions into the membrane GABA is an example of an inhibitory neurotransmitter. Drugs that increase the level of GABA are used to treat diseases such as epilepsy where the signal transmission needs to be impaired. The effect of the inhibitory neurotransmitter on the postsynaptic membrane is to: a. hyperpolarize the postsynaptic membrane b. decrease the threshold level c. depolarize the postsynaptic membrane d. maintain the resting potential Calcium is vital for bone growth, but it's also an important part of neural transmission. Calcium is required for the axon terminal to: a. Reuptake the neurotransmitter via exocytosis b. The neurotransmitter to be released by endocytosis c. The neurotransmitter…Define the following terms:a. excitatory neurotransmitterb. inhibitory neurotransmitterc. retrograde neurotransmitterd. dopaminee. epinephrine
- Which of the following neurotransmitters is associatedwith inhibition exclusively?a. GABAb. acetylcholinec. glutamated. norepinephrineFentanyl is an opioid similar to morphine, except, according to the CDC, it is up to 50 times stronger than heroin and 100 times stronger than morphine. Discuss the effects of fentanyl on specific receptors and how the transmission of action potentials is altered. Be sure to focus only on how the action potential transmission is impacted by the drug. Be sure to provide an APA citation.In some cases of ADD (attention deficit disorder) the impulsive, erratic behavior can be normalized with drugs that stimulate the central nervous system. Explain this finding in terms of neurotransmitter activity in the brain.
- Heroin (diamorphine) is: O an opioid receptor antagonist. O a long-acting opioid agonist that produces dysphoria. O a drug that is metabolised in humans to morphine. a drug with high liability for physical dependence and low liability for psychological dependence. Question 4 Cocaine exerts sympathomimetic activity by: O acting directly as an agonist at alpha 1-adrenoceptors. inhibiting the re-uptake of noradrenaline at axon terminal sympathetic neurons. O inhibiting alpha 1-adrenoceptors. O inhibiting the breakdown of noradrenaline by monoamine oxidase.Malathion is an insecticide commonly used in the horticultural industry. Many homeowners apply this chemical to their trees to rid them of infestation by aphids or other insects. Malathion is classified as an organophosphate insecticide. Exposure to malathion is very dangerous to humans and animals because it acts as an irreversible inhibitor of acetylcholinesterase. Predict what might happen to synaptic communication between cholinergic neurons if an individual or animal was poisoned with malathion, and clearly describe the mechanisms at work.Nervous system functions that directly employ acetylcholine neurotransmitters are referred to as cholinergic. Drugs that might be therapeutic in treating the symptoms of dopamine loss in Parkinson’s disease could include multiple choice 1 dopaminergic agonists and cholinergic antagonists. dopaminergic antagonists and cholinergic antagonists. dopaminergic antagonists and cholinergic agonists. dopaminergic agonists and cholinergic agonists. 2. From the information provided, drugs used to treat Parkinson’s disease symptoms will act at which location? multiple choice 2 The globus pallidus The substantia nigra The striatum 3. Which of the following might be therapeutic in the treatment of Parkinson’s disease symptoms? multiple choice 3 all of these choices listed may be therapeutic increasing dopamine receptor responsiveness monoamine oxidase inhibition increasing dopamine release decreasing dopamine…
- Phenytoin (sodium channel blocker) and ethosuximide (calcium channel blocker) are anti-seizure drugs that stop seizures from happening. These drugs work by inhibiting electrical impulses (action potentials) from occurring. Explain the importance of sodium and calcium channels on a neuron and the reasons why action potentials do not occur when these channels are inhibited. Thank youWhat type of synaptic potential (if any; be sure to indicate if any modification is occurring as well) would occur if: a.) An MAO inhibitor type of antidepressant is functioning at an active dopaminergic synapse that increases the rate of sodium flowing into the cell. b.) Prozac is present at an active serotonin synapse where receptor activation increases the flow of potassium out of the cell.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
