13 Questions
Which receptor activation causes bronchodilation?
β2 adrenergic receptor
What effect does α2 adrenergic receptor activation have on insulin release from pancreatic islet cells?
Decreased insulin release
Which adrenergic receptor activation leads to increased cardiac contractility?
β1 adrenergic receptor
What is the effect of activating α2 adrenergic receptors on ciliary bodies?
Decreased aqueous humor production
How does activation of β2 adrenergic receptors affect diastolic blood pressure?
Decreases diastolic blood pressure
What neurotransmitter do all post-ganglionic parasympathetic neurons utilize?
Acetylcholine
How many neurons are required for the spinothalamic tract pathway?
Two
Where do post-ganglionic sympathetic neurons synapse in sweat glands?
Prevertebral ganglia (splanchnic nerves)
Where are the cell bodies of the cuneocerebellar tract found?
Medulla
Which tract is responsible for carrying unconscious proprioceptive input from muscle spindles and GTOs to the cerebellum?
Dorsal spinocerebellar tract
Where do the fibers in the corticospinal tract leave the cerebral cortex?
Parietal lobe
Which type of neuron primarily provides descending control over reflexes?
Upper motor neuron
In which part of the brain do the cell bodies of upper motor neurons reside?
'Primary motor cortex (precentral gyrus)'
Test your knowledge on the functions of different adrenergic receptors. Learn about the effects of activating α1 and α2 adrenergic receptors on various muscles and neurotransmitter release.
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