Sympathetic Nervous System Functions Quiz
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Questions and Answers

What is the physiological effect of the sympathetic nervous system related to heart rate?

  • Tachycardia (correct)
  • Miosis
  • Hypertension
  • Bradycardia
  • Which of the following is a function of the parasympathetic nervous system?

  • Bradycardia (correct)
  • Bronchoconstriction
  • Tachycardia
  • Hyperglycemia
  • What is a common physiological effect of the sympathetic nervous system on the eyes?

  • Mydriasis (correct)
  • Lacrimation
  • Accommodation
  • Miosis
  • In terms of energy mobilization, which system expends energy?

    <p>Sympathetic nervous system</p> Signup and view all the answers

    Which system is mainly responsible for bronchoconstriction and broncho-secretion?

    <p>Parasympathetic nervous system</p> Signup and view all the answers

    Which part of the brain controls the sympathetic nervous system?

    <p>Posterolateral hypothalamus</p> Signup and view all the answers

    What is the enzyme responsible for removing acetylcholine from the synaptic cleft?

    <p>Acetylcholineesterase</p> Signup and view all the answers

    Which receptor type is activated by a mushroom-derived toxin called muscarine?

    <p>Muscarinic receptors</p> Signup and view all the answers

    Where are nicotinic acetylcholine receptors predominantly found?

    <p>Skeletal muscle cells</p> Signup and view all the answers

    Which type of neurons possess both muscarinic and nicotinic acetylcholine receptors?

    <p>Parasympathetic preganglionic neurons</p> Signup and view all the answers

    Which of the following effects can be produced by muscarinic acetylcholine receptors?

    <p>Both excitatory and inhibitory effects</p> Signup and view all the answers

    If an anticholinesterase drug is administered, what do you think would happen to the transmission across the synapse?

    <p>Increase transmission across the synapse</p> Signup and view all the answers

    What happens when action potentials result in the release of neurotransmitters?

    <p>Neurotransmitter diffuses across the synapse</p> Signup and view all the answers

    Which function may a neurotransmitter receptor fulfill after binding to a neurotransmitter?

    <p>Initiate a series of biochemical events in the postsynaptic cell</p> Signup and view all the answers

    What characterizes the Somatic Nervous System?

    <p>Conscious perception and control</p> Signup and view all the answers

    Which division of the nervous system is responsible for controlling processes unconsciously?

    <p>Autonomic Nervous System</p> Signup and view all the answers

    What is the main effect of an inhibitory neurotransmitter on the postsynaptic cell?

    <p>Hyperpolarization (IPSP)</p> Signup and view all the answers

    How do neurotransmitter molecules typically get removed from the synapse?

    <p>They are reabsorbed by the presynaptic neuron</p> Signup and view all the answers

    What is the neurotransmitter used in all Somatic Nervous System nerve endings?

    <p>Acetylcholine</p> Signup and view all the answers

    Which part of the nervous system controls reflexes?

    <p>Central Nervous System</p> Signup and view all the answers

    Where are the cell bodies of the Autonomic Nervous System located?

    <p>In autonomic ganglia</p> Signup and view all the answers

    Which type of muscle does the Somatic Nervous System innervate?

    <p>Skeletal muscle</p> Signup and view all the answers

    What is the function of the Parasympathetic division of the Autonomic Nervous System on heart rate?

    <p>Decreases heart rate</p> Signup and view all the answers

    In which part of the nervous system do pre-ganglionic neurons lead to post-ganglionic neurons?

    <p>Autonomic Nervous System</p> Signup and view all the answers

    What is the effect of receptors on the presynaptic membrane?

    <p>Inhibitory</p> Signup and view all the answers

    Which neurotransmitter is primarily involved in adrenergic neurotransmission?

    <p>Adrenaline</p> Signup and view all the answers

    What is the role of autoreceptors in adrenergic neurotransmission?

    <p>Inhibit neurotransmitter release</p> Signup and view all the answers

    Which class of receptors is involved in the Adrenergic Synapse?

    <p>Adrenergic receptors</p> Signup and view all the answers

    What are the two major classes of adrenergic receptors?

    <p>Alpha and Beta</p> Signup and view all the answers

    How is the action of adrenergic neurotransmission terminated?

    <p>By enzymes like COMT and MAO</p> Signup and view all the answers

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