Adrenergic Receptor Functions Quiz
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Questions and Answers

Which receptor activation causes bronchodilation?

  • β2 adrenergic receptor (correct)
  • β1 adrenergic receptor
  • α2 adrenergic receptor
  • α1 adrenergic receptor
  • What effect does α2 adrenergic receptor activation have on insulin release from pancreatic islet cells?

  • Stimulates gluconeogenesis
  • Decreased insulin release (correct)
  • Increased insulin release
  • No effect on insulin release
  • Which adrenergic receptor activation leads to increased cardiac contractility?

  • β2 adrenergic receptor
  • α1 adrenergic receptor
  • β1 adrenergic receptor (correct)
  • α2 adrenergic receptor
  • What is the effect of activating α2 adrenergic receptors on ciliary bodies?

    <p>Decreased aqueous humor production</p> Signup and view all the answers

    How does activation of β2 adrenergic receptors affect diastolic blood pressure?

    <p>Decreases diastolic blood pressure</p> Signup and view all the answers

    What neurotransmitter do all post-ganglionic parasympathetic neurons utilize?

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

    How many neurons are required for the spinothalamic tract pathway?

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

    Where do post-ganglionic sympathetic neurons synapse in sweat glands?

    <p>Prevertebral ganglia (splanchnic nerves)</p> Signup and view all the answers

    Where are the cell bodies of the cuneocerebellar tract found?

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

    Which tract is responsible for carrying unconscious proprioceptive input from muscle spindles and GTOs to the cerebellum?

    <p>Dorsal spinocerebellar tract</p> Signup and view all the answers

    Where do the fibers in the corticospinal tract leave the cerebral cortex?

    <p>Parietal lobe</p> Signup and view all the answers

    Which type of neuron primarily provides descending control over reflexes?

    <p>Upper motor neuron</p> Signup and view all the answers

    In which part of the brain do the cell bodies of upper motor neurons reside?

    <p>'Primary motor cortex (precentral gyrus)'</p> Signup and view all the answers

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