Neurotransmitters and receptors

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Biology

Last updated 1:30 PM on 9/10/26
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9 Terms

1
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Somatic acetylcholine

nicotinic-

  • contracts skeletal muscles

2
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parasympathetic, acetylcholine - M2 muscarinic

  • relaxes smooth muscles

  • decreases heart rate

3
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parasympathetic, acetylcholine - M3 muscarinic

  • contracts smooth muscles

  • stimulates secretions

4
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parasympathetic, acetylcholine - M4 muscarinic

  • inhibits somastatin secretion

5
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sympathetic, norepinephrine- alpha-1

  • smooth muscle contraction

6
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sympathetic, norepinephrine- alpha-2

  • inhibits release of epinephrine and norepinephrine

7
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sympathetic, norepinephrine- beta-1

  • increases heart rate and contractility

  • stimulates renin secretion

8
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sympathetic, norepinephrine- beta-2

  • smooth muscle relaxation

9
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sympathetic, norepinephrine- beta-3

  • gluconeogenesis

  • thermogenesis

  • lipdysis